| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Costa Rica | Robert Merrill King | 6789 | MO | Tropicos | 2419726 | no |
| Ageratina prunellifolia (Kunth) R.M. King & H. Rob. | Mexico | C.A. Purpus | 1488 | MO | Tropicos | 2419731 | no |
| Ageratina arsenei (B.L. Rob.) R.M. King & H. Rob. | Mexico | Oswaldo Téllez V. | s.n. | MO | Tropicos | 2419686 | no |
| Ageratina bellidifolia (Benth.) R.M. King & H. Rob. | Mexico | C.G. Pringle | s.n. | MO | Tropicos | 2419687 | no |
| Ageratina calaminthifolia (Kunth) R.M. King & H. Rob. | Mexico | Robert Merrill King & José A. Villarreal Q. | 10325 | MO | Tropicos | 2419689 | no |
| Ageratina calaminthifolia (Kunth) R.M. King & H. Rob. | Mexico | P. Tenorio L. y C. Romero T. Leobardo Tenorio. | 7437 | MO | Tropicos | 2419691 | no |
| Ageratina brevipes (DC.) R.M. King & H. Rob. | Mexico | Bro. G. Arséne | 2607 | MO | Tropicos | 2419684 | no |
| Ageratina calaminthifolia (Kunth) R.M. King & H. Rob. | Mexico | | s.n. | MO | Tropicos | 2419685 | no |
| Ageratina glabrata (Kunth) R.M. King & H. Rob. | Mexico | Rafael Hernández Magaña | 6670 | MO | Tropicos | 2419703 | no |
| Ageratina isolepis (B.L. Rob.) R.M. King & H. Rob. | Mexico | C.A. Purpus | 1496 | MO | Tropicos | 2419704 | no |
| Ageratina ixiocladon (Benth.) R.M. King & H. Rob. | Costa Rica | J.M. Greenman & M.T. Greenman | s.n. | MO | Tropicos | 2419705 | no |
| Ageratina ligustrina (DC.) R.M. King & H. Rob. | Mexico | C.G. Pringle | 8957 | MO | Tropicos | 2419708 | no |
| Ageratina cardiophylla (B.L. Rob.) R.M. King & H. Rob. | Mexico | C.G. Pringle | s.n. | MO | Tropicos | 2419694 | no |
| Ageratina deltoidea (Jacq.) R.M. King & H. Rob. | Mexico | E. Matuda | s.n. | MO | Tropicos | 2419695 | no |
| Ageratina calophylla (Greene) R.M. King & H. Rob. | Mexico | George S. Hinton | 24001 | MO | Tropicos | 2419783 | yes |
| Ageratina isolepis (B.L. Rob.) R.M. King & H. Rob. | Mexico | C.A. Purpus | 1496 | MO | Tropicos | 2419789 | no |
| Ageratina collodes (B.L. Rob. & Greenm.) R.M. King & H. Rob. | Mexico | Leonardo Hernandez G. con Gary J. Martin | 131 | MO | Tropicos | 2419779 | no |
| Ageratina ligustrina (DC.) R.M. King & H. Rob. | Mexico | G.L. Webster, G. Holstein & W.S. Armbruster | 20189 | MO | Tropicos | 2419793 | no |
| Ageratina longipetiolata (Sch. Bip. ex Rusby) R.M. King & H. Rob. | Mexico | Bro.G. Arséne | s.n. | MO | Tropicos | 2419795 | no |
| Ageratina ligustrina (DC.) R.M. King & H. Rob. | Mexico | Thomas B. Croat | 46479 | MO | Tropicos | 2419796 | no |
| Ageratina mairetiana (DC.) R.M. King & H. Rob. | Mexico | Arthur Cronquist, T.M. Barkley & D.M. Frame | s.n. | MO | Tropicos | 2419797 | no |
| Ageratina adenachaenia (Sch. Bip. ex Klatt) R.M. King & H. Rob. | Mexico | Liebmann | s.n. | MO | Tropicos | 2419753 | no |
| Ageratina anisochroma (Klatt) R.M. King & H. Rob. | Costa Rica | Robert Merrill King | 6836 | MO | Tropicos | 2419754 | no |
| Ageratina cerifera (McVaugh) R.M. King & H. Rob. | Mexico | J. Espinosa Garduño | 2053 | MO | Tropicos | 2419755 | no |
| Ageratina anisochroma (Klatt) R.M. King & H. Rob. | Costa Rica | R.L. Wilbur & J.A. Teeri | 13736 | MO | Tropicos | 2419767 | no |
| Ageratina brevipes (DC.) R.M. King & H. Rob. | Mexico | D. E. Breedlove, F. Almeda | 58925 | MO | Tropicos | 2419768 | no |
| Ageratina rubricaulis (Kunth) R.M. King & H. Rob. | Mexico | J. La Duke, N. Reichenbach & E. Smith | 573 | MO | Tropicos | 2419758 | no |
| Ageratina Spach | Mexico | Thomas B. Croat | 45956 | MO | Tropicos | 2419764 | no |
| Ageratina calaminthifolia (Kunth) R.M. King & H. Rob. | Mexico | C.A. Purpus | 4798 | MO | Tropicos | 2419848 | no |
| Ageratina ligustrina (DC.) R.M. King & H. Rob. | Guatemala | Robert Merrill King | 7328 | MO | Tropicos | 2419850 | no |
| Ageratina adenophora (Spreng.) R.M. King & H. Rob. | Mexico | Bro. G. Arséne | s.n. | MO | Tropicos | 2419861 | no |
| Ageratina pichinchensis bustamenta (DC.) R.M. King & H. Rob. | Mexico | D.E. Breedlove | 23992 | MO | Tropicos | 2419814 | no |
| Ageratina purpusii (Brandegee) R.M. King & H. Rob. | Mexico | Howard Scott Gentry | 3765 | MO | Tropicos | 2419816 | no |
| Ageratina purpusii (Brandegee) R.M. King & H. Rob. | Mexico | Annetta Carter, Annie M. Alexander & Louis Kellogg | 2432 | MO | Tropicos | 2419817 | no |
| Ageratina pichinchensis bustamenta (DC.) R.M. King & H. Rob. | Mexico | Ernest Lyonnet | s.n. | MO | Tropicos | 2419808 | no |
| Ageratina ixiocladon (Benth.) R.M. King & H. Rob. | Panama | Edwin L. Tyson & Horace Loftin | 616 | MO | Tropicos | 2419830 | no |
| Ageratina scorodonioides (A. Gray) R.M. King & H. Rob. | Mexico | Robert Merrill King & José A. Villarreal Q. | 10378 | MO | Tropicos | 2419822 | no |
| Ageratina tomentella (Schrad.) R.M. King & H. Rob. | Mexico | D.E. Breedlove | 65406 | MO | Tropicos | 2419828 | no |
| Ageratina petiolaris (Moc. ex DC.) R.M. King & H. Rob. | Mexico | Nahúm Madonado Vásquez | 0118 | MO | Tropicos | 2419914 | no |
| Ageratina riparia (Regel) R.M. King & H. Rob. | Mexico | C.A. Purpus | s.n. | MO | Tropicos | 2419916 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Costa Rica | L.D. Gómez P., I.A. Chacón G., R. Chacón & G. Herrera C. | 21653 | MO | Tropicos | 2419905 | no |
| Ageratina pichinchensis bustamenta (DC.) R.M. King & H. Rob. | Panama | Thomas B. Croat | 35005 | MO | Tropicos | 2419929 | no |
| Ageratina vernalis (Vatke & Kurtz) R.M. King & H. Rob. | Mexico | Jose Rivera Reyes con Gary J. Martin | 971 | MO | Tropicos | 2419931 | no |
| Ageratina pichinchensis bustamenta (DC.) R.M. King & H. Rob. | Panama | W.G. D'Arcy | 10718 | MO | Tropicos | 2419933 | no |
| Ageratina subcordata (Benth.) R.M. King & H. Rob. | Costa Rica | Robert Merrill King | 6412 | MO | Tropicos | 2419920 | no |
| Ageratina scorodonioides (A. Gray) R.M. King & H. Rob. | Mexico | C.G. Pringle | 9471 | MO | Tropicos | 2419921 | no |
| Ageratina vernalis (Vatke & Kurtz) R.M. King & H. Rob. | Mexico | James C. Hinton | 17536bis | MO | Tropicos | 2419925 | no |
| Ageratina glauca (Sch. Bip. ex Klatt) R.M. King & H. Rob. | Mexico | Arthur Cronquist | 9647 | MO | Tropicos | 2419880 | no |
| Ageratina glabrata (Kunth) R.M. King & H. Rob. | Mexico | Thomas B. Croat | 32731 | MO | Tropicos | 2419881 | no |
| Ageratina lasia (B.L. Rob.) R.M. King & H. Rob. | Mexico | Bro. G. Arséne | 5867 | MO | Tropicos | 2419883 | no |
| Ageratina leiocarpa (B.L. Rob.) Gage ex B.L. Turner | Mexico | C.G. Pringle | s.n. | MO | Tropicos | 2419884 | no |
| Ageratina isolepis (B.L. Rob.) R.M. King & H. Rob. | Mexico | Dudley B.Gold | s.n. | MO | Tropicos | 2419885 | no |
| Ageratina brevipes (DC.) R.M. King & H. Rob. | Mexico | Charles L. Smith | s.n. | MO | Tropicos | 2419872 | no |
| Ageratina calaminthifolia (Kunth) R.M. King & H. Rob. | Mexico | Dr. Edward Palmer | 303 1/2 | MO | Tropicos | 2419876 | no |
| Ageratina petiolaris (Moc. ex DC.) R.M. King & H. Rob. | Mexico | C.A. Purpus | 194 | MO | Tropicos | 2419897 | no |
| Ageratina mairetiana (DC.) R.M. King & H. Rob. | Mexico | Ernest Lyonnet | s.n. | MO | Tropicos | 2419899 | no |
| Ageratina ligustrina (DC.) R.M. King & H. Rob. | Mexico | Rafael Hernández Magaña, M. Franco y Humberto Susan | 5175 | MO | Tropicos | 2419887 | no |
| Ageratina ligustrina (DC.) R.M. King & H. Rob. | Mexico | D. E. Breelove | 23094 | MO | Tropicos | 2419892 | no |
| Ageratina cardiophylla (B.L. Rob.) R.M. King & H. Rob. | Mexico | Arthur Cronquist | 9799 | MO | Tropicos | 2419974 | no |
| Ageratina brevipes (DC.) R.M. King & H. Rob. | Mexico | A. Ventura A. | 4158 | MO | Tropicos | 2419967 | no |
| Ageratina calaminthifolia (Kunth) R.M. King & H. Rob. | Mexico | C.A. Purpus | 4654 | MO | Tropicos | 2419968 | no |
| Ageratina calaminthifolia (Kunth) R.M. King & H. Rob. | Mexico | Bro. G. Arséne | 1724 | MO | Tropicos | 2419973 | no |
| Ageratina havanensis (Kunth) R.M. King & H. Rob. | Mexico | C.H. Mueller | 2107 | MO | Tropicos | 2419992 | no |
| Ageratina havanensis (Kunth) R.M. King & H. Rob. | Mexico | James Grimes with K. Nixon, L. Dorr & S. Sundberg | 2314 | MO | Tropicos | 2419993 | no |
| Ageratina espinosarum subintegrifolia (B.L. Rob.) B.L. Turner | Mexico | C.G. Pringle | 3311 | MO | Tropicos | 2419983 | yes |
| Ageratina isolepis (B.L. Rob.) R.M. King & H. Rob. | Mexico | Ynes Mexia | s.n. | MO | Tropicos | 2419985 | no |
| Ageratina ixiocladon (Benth.) R.M. King & H. Rob. | Costa Rica | J.M. Greenman & M.T. Greenman | s.n. | MO | Tropicos | 2419986 | no |
| Ageratina ligustrina (DC.) R.M. King & H. Rob. | Mexico | C.A. Purpus | 4792 | MO | Tropicos | 2419987 | no |
| Ageratina havanensis (Kunth) R.M. King & H. Rob. | Mexico | Robert Merill king & Jesus Valdés Reyna | 10363 | MO | Tropicos | 2419989 | no |
| Ageratina muelleri (Sch. Bip. ex Klatt) R.M. King & H. Rob. | Mexico | George B. Hinton | 2710 | MO | Tropicos | 2419943 | no |
| Ageratina malacolepis (B.L. Rob.) R.M. King & H. Rob. | Mexico | J. Gregg | 987 | MO | Tropicos | 2419950 | yes |
| Ageratina espinosarum (A. Gray) R.M. King & H. Rob. | Mexico | David Flyr | 581 | MO | Tropicos | 2420045 | no |
| Ageratina wrightii (A. Gray) R.M. King & H. Rob. | Mexico | C.G. Pringle | 13052 | MO | Tropicos | 2420033 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Costa Rica | Robert Merrill King | 6814 | MO | Tropicos | 2420007 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Costa Rica | Alex. Rodriguez, V.H. Ramire & Estrada | 2146 | MO | Tropicos | 2420008 | no |
| Ageratina prunellifolia (Kunth) R.M. King & H. Rob. | Mexico | C.G. Pringle | s.n. | MO | Tropicos | 2420010 | no |
| Ageratina muelleri (Sch. Bip. ex Klatt) R.M. King & H. Rob. | Mexico | Rzedowski | 45609 | MO | Tropicos | 2420003 | no |
| Ageratina pichinchensis bustamenta (DC.) R.M. King & H. Rob. | Mexico | E. Ventura V. | s.n. | MO | Tropicos | 2420004 | no |
| Ageratina triniona (McVaugh) R.M. King & H. Rob. | Mexico | D.E.Breedlove | s.n. | MO | Tropicos | 2420026 | no |
| Ageratina aschenborniana (S. Schauer) R.M. King & H. Rob. | Guatemala | Robert Merrill King | 7232 | MO | Tropicos | 2420014 | no |
| Ageratina aschenborniana (S. Schauer) R.M. King & H. Rob. | Guatemala | Robert Merrill King | 7383 | MO | Tropicos | 2420017 | no |
| Ageratina scorodonioides (A. Gray) R.M. King & H. Rob. | Mexico | E. Ventura y E. López | 7187 | MO | Tropicos | 2420021 | no |
| Ageratina mairetiana (DC.) R.M. King & H. Rob. | Mexico | C.G. Pringle | s.n. | MO | Tropicos | 2420109 | no |
| Ageratina petiolaris (Moc. ex DC.) R.M. King & H. Rob. | Mexico | R. Ortega et al. | 184 | MO | Tropicos | 2420094 | no |
| Ageratina bustamenta (DC.) R.M. King & H. Rob. | Mexico | Thomas B. Croat | 48236 | MO | Tropicos | 2420097 | no |
| Ageratina palmeri (A. Gray) Gage ex B.L. Turner | Mexico | P. Tenorio L. C. Romero T. con J. Ignacio S. Patricia Davila | 10028 | MO | Tropicos | 2420101 | no |
| Ageratina rubricaulis (Kunth) R.M. King & H. Rob. | Mexico | C.G. Pringle | 4272 | MO | Tropicos | 2420118 | no |
| Ageratina schaffneri (Sch. Bip. ex B.L. Rob.) R.M. King & H. Rob. | Mexico | A. Ventura A. | 563 | MO | Tropicos | 2420120 | no |
| Ageratina schaffneri (Sch. Bip. ex B.L. Rob.) R.M. King & H. Rob. | Mexico | Rzedowski | 47585 | MO | Tropicos | 2420116 | no |
| Ageratina schaffneri (Sch. Bip. ex B.L. Rob.) R.M. King & H. Rob. | Mexico | P. Tenorio L. y C. Romero de T. | 8002 | MO | Tropicos | 2420117 | no |
| Ageratina glabrata (Kunth) R.M. King & H. Rob. | Mexico | José L. Magaña M. | 1196 | MO | Tropicos | 2420073 | no |
| Ageratina hidalgensis (H. Rob.) R.M. King & H. Rob. | Mexico | P.Tenorio L., C. Romero de T. | s.n. | MO | Tropicos | 2420075 | no |
| Ageratina anisochroma (Klatt) R.M. King & H. Rob. | Costa Rica | Alex. Rodríguez & S. Salas | 1991 | MO | Tropicos | 2420066 | no |
| Ageratina calaminthifolia (Kunth) R.M. King & H. Rob. | Mexico | Robert Merrill King & Paul M. Peterson | 9864 | MO | Tropicos | 2420067 | no |
| Ageratina ligustrina (DC.) R.M. King & H. Rob. | Mexico | D. E. Breedlove | 42758 | MO | Tropicos | 2420087 | no |
| Ageratina ligustrina (DC.) R.M. King & H. Rob. | Mexico | Thomas B. Croat | 45605 | MO | Tropicos | 2420092 | no |
| Ageratina isolepis (B.L. Rob.) R.M. King & H. Rob. | Mexico | Bro. G. Arséne | s.n. | MO | Tropicos | 2420078 | no |
| Ageratina ixiocladon (Benth.) R.M. King & H. Rob. | Costa Rica | J.M. Greenman & M.T. Greenman | s.n. | MO | Tropicos | 2420079 | no |
| Ageratina ligustrina (DC.) R.M. King & H. Rob. | Mexico | D.E. Breedlove, R.F. Thorne | s.n. | MO | Tropicos | 2420081 | no |
| Ageratina deltoidea (Jacq.) R.M. King & H. Rob. | Mexico | C.G. Pringle | s.n. | MO | Tropicos | 2420167 | no |
| Ageratina glabrata (Kunth) R.M. King & H. Rob. | Mexico | José C. Soto Núnez | 2655 | MO | Tropicos | 2420172 | no |
| Ageratina isolepis (B.L. Rob.) R.M. King & H. Rob. | Mexico | Ernest Lyonnet | s.n. | MO | Tropicos | 2420173 | no |
| Ageratina ligustrina (DC.) R.M. King & H. Rob. | Mexico | Velva E. Rudd | 2009 | MO | Tropicos | 2420185 | no |
| Ageratina mairetiana (DC.) R.M. King & H. Rob. | Mexico | E. Ventura V. | s.n. | MO | Tropicos | 2420186 | no |
| Ageratina Spach | Mexico | L.R. Stanford, L.A. Taylor | 2543 | MO | Tropicos | 2420189 | no |
| Ageratina ligustrina (DC.) R.M. King & H. Rob. | Mexico | D.E. Breedlove | 41419 | MO | Tropicos | 2420175 | no |
| Ageratina ligustrina (DC.) R.M. King & H. Rob. | Mexico | David H. Lorence, A. García M. & R. Cedillo T. | 3586 | MO | Tropicos | 2420176 | no |
| Ageratina lucida (Ortega) R.M. King & H. Rob. | Mexico | Arthur Cronquist, José Luis Villaseñor | s.n. | MO | Tropicos | 2420180 | no |
| Ageratina calaminthifolia (Kunth) R.M. King & H. Rob. | Mexico | Charles L. Smith | 630 | MO | Tropicos | 2420139 | no |
| Ageratina anisochroma (Klatt) R.M. King & H. Rob. | Costa Rica | G.L. Webster, K.I. Miller & L.W. Miller | 12281 | MO | Tropicos | 2420140 | no |
| Ageratina vernalis (Vatke & Kurtz) R.M. King & H. Rob. | Mexico | C.A. Purpus | 3134 | MO | Tropicos | 2420128 | no |
| Ageratina acutidentata (B.L. Rob.) R.M. King & H. Rob. | Mexico | C.G. Pringle | s.n. | MO | Tropicos | 2420152 | no |
| Ageratina areolaris (DC.) Gage ex B.L. Turner | Mexico | Bro. G. Arséne | 3258 | MO | Tropicos | 2420154 | no |
| Ageratina espinosarum (A. Gray) R.M. King & H. Rob. | Mexico | Dr. Edward Palmer | 642 | MO | Tropicos | 2420145 | no |
| Ageratina glabrata (Kunth) R.M. King & H. Rob. | Mexico | C.A. Purpus | 1831 | MO | Tropicos | 2420146 | no |
| Ageratina petiolaris (Moc. ex DC.) R.M. King & H. Rob. | Mexico | Dr. J. Gregg | 598 | MO | Tropicos | 2420148 | yes |
| Ageratina rhomboidea (Kunth) R.M. King & H. Rob. | Mexico | D.B. Dunn | s.n. | MO | Tropicos | 2420234 | no |
| Ageratina anisochroma (Klatt) R.M. King & H. Rob. | Costa Rica | Thomas B. Croat | 47042 A | MO | Tropicos | 2420236 | no |
| Ageratina anisochroma (Klatt) R.M. King & H. Rob. | Costa Rica | Thomas B. Croat | 46995 | MO | Tropicos | 2420237 | no |
| Ageratina vernalis (Vatke & Kurtz) R.M. King & H. Rob. | Mexico | R. Hernández M. | 3874 | MO | Tropicos | 2420222 | no |
| Ageratina pichinchensis bustamenta (DC.) R.M. King & H. Rob. | Panama | Paul H. Allen | s.n. | MO | Tropicos | 2420226 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | Mexico | Oscar L. Briones | 2132 | MO | Tropicos | 2420250 | no |
| Ageratina conspicua R.M. King & H. Rob. | Mexico | J.A. Duke | M3508 | MO | Tropicos | 2420238 | no |
| Ageratina pazcuarensis (Kunth) R.M. King & H. Rob. | Mexico | Dr. J. Gregg | 375 | MO | Tropicos | 2420239 | yes |
| Ageratina pichinchensis bustamenta (DC.) R.M. King & H. Rob. | Mexico | John Brett | s.n. | MO | Tropicos | 2420202 | no |
| Ageratina pichinchensis bustamenta (DC.) R.M. King & H. Rob. | Mexico | Feliciano Gómez Santiz | 127 | MO | Tropicos | 2420203 | no |
| Ageratina thyrsiflora (Greene) R.M. King & H. Rob. | Mexico | Edward Palmer | 275 | MO | Tropicos | 2420193 | yes |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Costa Rica | L.J. Poveda A. | 4067 | MO | Tropicos | 2420197 | no |
| Ageratina tomentella (Schrad.) R.M. King & H. Rob. | Mexico | Scott Sundberg, Matt Lavin | 3035 | MO | Tropicos | 2420214 | no |
| Ageratina anisochroma (Klatt) R.M. King & H. Rob. | Panama | R.L. Wilbur, R.E. Weaver, Robin B. Foster & Mireya D. Correa A. | 10877 | MO | Tropicos | 2420218 | no |
| Ageratina vernalis (Vatke & Kurtz) R.M. King & H. Rob. | Mexico | D.E. Breedlove | 50654 | MO | Tropicos | 2420219 | no |
| Ageratina saltillensis (B.L. Rob.) R.M. King & H. Rob. | Mexico | Guy Nesom with Julia Wells | 6718 | MO | Tropicos | 2420208 | no |
| Ageratina rubricaulis (Kunth) R.M. King & H. Rob. | Mexico | A. Ventura A. | 2125 | MO | Tropicos | 2420213 | no |
| Ageratina pachypoda (B.L. Rob.) R.M. King & H. Rob. | Mexico | C.G. Pringle | s.n. | MO | Tropicos | 2420296 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Costa Rica | Thomas B. Croat | 32841 | MO | Tropicos | 2420298 | no |
| Ageratina mairetiana (DC.) R.M. King & H. Rob. | Mexico | Ernest Lyonnet | s.n. | MO | Tropicos | 2420290 | no |
| Ageratina subcordata (Benth.) R.M. King & H. Rob. | Costa Rica | Robert Merrill King | 6435 | MO | Tropicos | 2420310 | no |
| Ageratina petiolaris (Moc. ex DC.) R.M. King & H. Rob. | Mexico | C.A. Purpus | 1020 | MO | Tropicos | 2420305 | no |
| Ageratina rivalis (Greenm.) R.M. King & H. Rob. | Mexico | Rzedowski | s.n. | MO | Tropicos | 2420306 | no |
| Ageratina jaliscensis (B.L. Rob.) Gage ex B.L. Turner | Mexico | D. E. Breedlove | 35767 | MO | Tropicos | 2420268 | no |
| Ageratina brandegeana (B.L. Rob.) R.M. King & H. Rob. | Mexico | Gabriel Flores F., O. Téllez V., P. Tenorio L. & A. Cadena | s.n. | MO | Tropicos | 2420255 | no |
| Ageratina choricephala (B.L. Rob.) R.M. King & H. Rob. | Mexico | D.E. Breedlove | 35802 | MO | Tropicos | 2420258 | no |
| Ageratina mairetiana (DC.) R.M. King & H. Rob. | Mexico | D.E. Breedlove | s.n. | MO | Tropicos | 2420285 | no |
| Ageratina lasia (B.L. Rob.) R.M. King & H. Rob. | Mexico | Bro. G. Arséne | 7275 | MO | Tropicos | 2420270 | no |
| Ageratina havanensis (Kunth) R.M. King & H. Rob. | Mexico | C.A. Purpus | 4800 | MO | Tropicos | 2420277 | no |
| Ageratina cronquistii R.M. King & H. Rob. | Mexico | José García P., A. Delgado S. | 907 | MO | Tropicos | 2420359 | no |
| Ageratina deltoidea (Jacq.) R.M. King & H. Rob. | Mexico | José García P. | s.n. | MO | Tropicos | 2420363 | no |
| Ageratina lasioneura (Hook. & Arn.) R.M. King & H. Rob. | Mexico | Ynes Mexia | 1634 | MO | Tropicos | 2420364 | no |
| Ageratina arsenei (B.L. Rob.) R.M. King & H. Rob. | Mexico | Gabriel Flores F., R. Ruenes | 1891 | MO | Tropicos | 2420352 | no |
| Ageratina calaminthifolia (Kunth) R.M. King & H. Rob. | Mexico | Rzedowski | 3094 | MO | Tropicos | 2420354 | no |
| Ageratina grashoffii B.L. Turner | Mexico | Robert Merrill King, Paul M. Peterson | 9915 | MO | Tropicos | 2420374 | no |
| Ageratina ligustrina (DC.) R.M. King & H. Rob. | Guatemala | Robert Merrill King & Richard C. Renner | 7115 | MO | Tropicos | 2420375 | no |
| Ageratina ligustrina (DC.) R.M. King & H. Rob. | Mexico | Alush Méndez Ton | 5098 | MO | Tropicos | 2420378 | no |
| Ageratina mairetiana (DC.) R.M. King & H. Rob. | Mexico | C.A. Purpus | s.n. | MO | Tropicos | 2420380 | no |
| Ageratina ligustrina (DC.) R.M. King & H. Rob. | Mexico | T. Wendt, E.J. Lott y J. García P. | 2266 | MO | Tropicos | 2420381 | no |
| Ageratina calophylla (Greene) R.M. King & H. Rob. | Mexico | Rafael Hernández Magaña | 4979 | MO | Tropicos | 2420368 | no |
| Ageratina pichinchensis bustamenta (DC.) R.M. King & H. Rob. | Panama | W. D'Arcy, B. Hammel, E.C. Hill, S. Schwartz, O. Wolcott & H. Wolcott | 13164 | MO | Tropicos | 2420326 | no |
| Ageratina ligustrina (DC.) R.M. King & H. Rob. | Mexico | S. Avendano R. et al. | 2 | MO | Tropicos | 2420328 | no |
| Ageratina pichinchensis bustamenta (DC.) R.M. King & H. Rob. | Panama | Max Partch | 69-10 | MO | Tropicos | 2420324 | no |
| Ageratina rubricaulis (Kunth) R.M. King & H. Rob. | Mexico | | s.n. | MO | Tropicos | 2420336 | no |
| Ageratina arsenei (B.L. Rob.) R.M. King & H. Rob. | Mexico | E. Matuda | s.n. | MO | Tropicos | 2420337 | no |
| Ageratina pazcuarensis (Kunth) R.M. King & H. Rob. | Mexico | C.A. Purpus | 5 | MO | Tropicos | 2420338 | no |
| Ageratina Spach | Mexico | John Brett | 750 | MO | Tropicos | 2420415 | no |
| Ageratina pichinchensis bustamenta (DC.) R.M. King & H. Rob. | Panama | W.G. D'Arcy & Janet J. D'Arcy | 6548 | MO | Tropicos | 2420420 | no |
| Ageratina rubricaulis (Kunth) R.M. King & H. Rob. | Mexico | George B. Hinton | 2440 | MO | Tropicos | 2420438 | no |
| Ageratina Spach | Mexico | Thomas B. Croat | 46022 | MO | Tropicos | 2420443 | no |
| Ageratina irrasa (B.L. Rob.) R.M. King & H. Rob. | Mexico | F.Ventura A. | s.n. | MO | Tropicos | 2420431 | no |
| Ageratina saltillensis (B.L. Rob.) R.M. King & H. Rob. | Mexico | C.C. Parry & Ed Palmer | 346 | MO | Tropicos | 2420435 | no |
| Ageratina muelleri (Sch. Bip. ex Klatt) R.M. King & H. Rob. | Mexico | E. Martinez S. y T.P. Ramamoorthy, F. Barrie | 5323 | MO | Tropicos | 2420391 | no |
| Ageratina mairetiana (DC.) R.M. King & H. Rob. | Guatemala | Robert Merrill King | 7288 | MO | Tropicos | 2420387 | no |
| Ageratina malacolepis (B.L. Rob.) R.M. King & H. Rob. | Mexico | Novelo, R.A. | 01044 | MO | Tropicos | 2420388 | no |
| Ageratina Spach | Mexico | M.T. Pulido S. | 447 | MO | Tropicos | 2420389 | no |
| Ageratina saltillensis (B.L. Rob.) R.M. King & H. Rob. | Mexico | Clark P. Cowan with Melissa Luckow & Nancy Jacobson | 5494 | MO | Tropicos | 2420407 | no |
| Ageratina saltillensis (B.L. Rob.) R.M. King & H. Rob. | Mexico | Robert Merrill King & Miguel A. Carranza P. | 10355 | MO | Tropicos | 2420409 | no |
| Ageratina pazcuarensis (Kunth) R.M. King & H. Rob. | Mexico | A. Ventura A. | 2331 | MO | Tropicos | 2420400 | no |
| Ageratina pichinchensis bustamenta (DC.) R.M. King & H. Rob. | El Salvador | R. Villacorta et al. | 1012 | MO | Tropicos | 2420403 | no |
| Ageratina mairetiana (DC.) R.M. King & H. Rob. | Mexico | C.G. Pringle | s.n. | MO | Tropicos | 2420405 | no |
| Ageratina bustamenta (DC.) R.M. King & H. Rob. | Mexico | Bro. G. Arséne | 2357 | MO | Tropicos | 2420487 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Costa Rica | Thomas B. Croat | 35432 | MO | Tropicos | 2420492 | no |
| Ageratina mairetiana (DC.) R.M. King & H. Rob. | Mexico | Ynes Mexia | s.n. | MO | Tropicos | 2420478 | no |
| Ageratina scorodonioides (A. Gray) R.M. King & H. Rob. | Mexico | Rafael Hernández Magaña | 4886 | MO | Tropicos | 2420503 | no |
| Ageratina scorodonioides (A. Gray) R.M. King & H. Rob. | Mexico | C.A. Purpus | 2456 | MO | Tropicos | 2420504 | no |
| Ageratina schaffneri (Sch. Bip. ex B.L. Rob.) R.M. King & H. Rob. | Mexico | Rzedowski | 47820 | MO | Tropicos | 2420507 | no |
| Ageratina Spach | Mexico | Thomas B. Croat | 45995 | MO | Tropicos | 2420509 | no |
| Ageratina aschenborniana (S. Schauer) R.M. King & H. Rob. | Guatemala | Robert Merrill King & Richard C. Renner | 7072 | MO | Tropicos | 2420501 | no |
| Ageratina bellidifolia (Benth.) R.M. King & H. Rob. | Mexico | D.E. Breedlove | s.n. | MO | Tropicos | 2420455 | no |
| Ageratina choricephala (B.L. Rob.) R.M. King & H. Rob. | Mexico | Ynes Mexia | 479 | MO | Tropicos | 2420457 | no |
| Ageratina choricephala (B.L. Rob.) R.M. King & H. Rob. | Mexico | Bro. G. Arsene | 6619 | MO | Tropicos | 2420458 | no |
| Ageratina collodes (B.L. Rob. & Greenm.) R.M. King & H. Rob. | Mexico | Saul Hernández López con Gary J. Martin | 93a | MO | Tropicos | 2418947 | no |
| Ageratina brevipes (DC.) R.M. King & H. Rob. | Mexico | Bro. G. Arséne | 5860 | MO | Tropicos | 2418966 | no |
| Ageratina pichinchensis bustamenta (DC.) R.M. King & H. Rob. | Mexico | D.E. Breedlove | 24083 | MO | Tropicos | 2419015 | no |
| Ageratina vernalis (Vatke & Kurtz) R.M. King & H. Rob. | Mexico | Ricardo López Luna con Gary J Martin | 0426 | MO | Tropicos | 2419035 | no |
| Ageratina scorodonioides (A. Gray) R.M. King & H. Rob. | Mexico | Jim & Rosemary Conrad | 3279 | MO | Tropicos | 2419023 | no |
| Ageratina subcordata (Benth.) R.M. King & H. Rob. | Costa Rica | Thomas B. Croat | 35404 | MO | Tropicos | 2419024 | no |
| Ageratina glabrata (Kunth) R.M. King & H. Rob. | Mexico | R. Hernández R. | 94 | MO | Tropicos | 2418987 | no |
| Ageratina liebmannii (Sch. Bip. ex Klatt) R.M. King & H. Rob. | Mexico | O. Tellez | 3862 | MO | Tropicos | 2418988 | no |
| Ageratina petiolaris (Moc. ex DC.) R.M. King & H. Rob. | Mexico | C.A. Purpus | 1576 | MO | Tropicos | 2419001 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Mexico | Guadalupe Martinez Calderon | 2227 | MO | Tropicos | 2419005 | no |
| Ageratina ligustrina (DC.) R.M. King & H. Rob. | Mexico | D. E. Breedlove | 40963 | MO | Tropicos | 2418994 | no |
| Ageratina espinosarum (A. Gray) R.M. King & H. Rob. | Mexico | Prof. C. Conzatti | 5023 | MO | Tropicos | 2419080 | no |
| Ageratina hidalgensis (H. Rob.) R.M. King & H. Rob. | Mexico | Jim & Rosemary Conrad | 3306 | MO | Tropicos | 2419084 | no |
| Ageratina brevipes (DC.) R.M. King & H. Rob. | Mexico | Bro. G. Arséne | s.n. | MO | Tropicos | 2419074 | no |
| Ageratina calaminthifolia (Kunth) R.M. King & H. Rob. | Mexico | D. E. Breedlove | 44283 | MO | Tropicos | 2419076 | no |
| Ageratina loeseneri (B.L. Rob.) R.M. King & H. Rob. | Mexico | C.G. Pringle | s.n. | MO | Tropicos | 2419094 | no |
| Ageratina lucida (Ortega) R.M. King & H. Rob. | Mexico | William Hahn | 546 | MO | Tropicos | 2419095 | no |
| Ageratina havanensis (Kunth) R.M. King & H. Rob. | Mexico | Bro G. Arséne | 8591 | MO | Tropicos | 2419096 | no |
| Ageratina malacolepis (B.L. Rob.) R.M. King & H. Rob. | Mexico | Ernest Lyonnet | 3189 | MO | Tropicos | 2419100 | no |
| Ageratina ligustrina (DC.) R.M. King & H. Rob. | Mexico | Thomas B. Croat | 45605 | MO | Tropicos | 2419089 | no |
| Ageratina anisochroma (Klatt) R.M. King & H. Rob. | Costa Rica | Alexander F. Skutch | 3221 | MO | Tropicos | 2419049 | no |
| Ageratina saltillensis (B.L. Rob.) R.M. King & H. Rob. | Mexico | Ernest Lyonnet | 421000012 | MO | Tropicos | 2419053 | no |
| Ageratina brevipes (DC.) R.M. King & H. Rob. | Mexico | Dr. Edward Palmer | 752 | MO | Tropicos | 2419066 | no |
| Ageratina vernicosa (Sch. Bip. ex Greenm.) R.M. King & H. Rob. | Mexico | C.A. Purpus | 1493 | MO | Tropicos | 2419054 | no |
| Ageratina pichinchensis bustamenta (DC.) R.M. King & H. Rob. | Panama | W.G. D'Arcy, Barry E. Hammel & John E. Averett | 12724 | MO | Tropicos | 2419145 | no |
| Ageratina ligustrina (DC.) R.M. King & H. Rob. | Mexico | S. Avendano R. et al | 86 | MO | Tropicos | 2419148 | no |
| Ageratina campyloclada (B.L. Rob.) R.M. King & H. Rob. | Mexico | James C. Hinton | 18160 | MO | Tropicos | 2419150 | yes |
| Ageratina occidentalis (Hook.) R.M. King & H. Rob. | Mexico | C.G. Pringle | 613 | MO | Tropicos | 2419111 | yes |
| Ageratina pazcuarensis (Kunth) R.M. King & H. Rob. | Mexico | C.G. Pringle | 6562 | MO | Tropicos | 2419117 | no |
| Ageratina pazcuarensis (Kunth) R.M. King & H. Rob. | Mexico | Rzedowski | 49157 | MO | Tropicos | 2419120 | no |
| Ageratina mairetiana (DC.) R.M. King & H. Rob. | Mexico | A. Ventura A | s.n. | MO | Tropicos | 2419201 | no |
| Ageratina mairetiana (DC.) R.M. King & H. Rob. | Mexico | S. O'Kane, A. Collwell & A. Salinas | 3305 | MO | Tropicos | 2419205 | no |
| Ageratina reticulifera (Standl. & L.O. Williams) R.M. King & H. Rob. | Costa Rica | Alex Rodríguez, V.H. Ramírez & Estrada | 2145 | MO | Tropicos | 2419224 | no |
| Ageratina schaffneri (Sch. Bip. ex B.L. Rob.) R.M. King & H. Rob. | Mexico | Ernest Lyonnet | 1876 | MO | Tropicos | 2419229 | no |
| Ageratina aschenborniana (S. Schauer) R.M. King & H. Rob. | Guatemala | Robert Merrill King | 7208 | MO | Tropicos | 2419221 | no |
| Ageratina calaminthifolia (Kunth) R.M. King & H. Rob. | Mexico | V. Ventura | 1642 | MO | Tropicos | 2419175 | no |
| Ageratina deltoidea (Jacq.) R.M. King & H. Rob. | Mexico | C.G. Pringle | s.n. | MO | Tropicos | 2419178 | no |
| Ageratina ixiocladon (Benth.) R.M. King & H. Rob. | Costa Rica | J.M. Greenman & M.T. Greenman | s.n. | MO | Tropicos | 2419190 | no |
| Ageratina ligustrina (DC.) R.M. King & H. Rob. | Mexico | D.E. Breedlove, A.R. Smith | 21698 | MO | Tropicos | 2419192 | no |
| Ageratina mairetiana (DC.) R.M. King & H. Rob. | Mexico | Rogers McVaugh | s.n. | MO | Tropicos | 2419197 | no |
| Ageratina espinosarum (A. Gray) R.M. King & H. Rob. | Mexico | Arturo Victoria H. | 79-95 | MO | Tropicos | 2419184 | no |
| Ageratina hidalgensis (H. Rob.) R.M. King & H. Rob. | Mexico | F. Garcia B. | s.n. | MO | Tropicos | 2419186 | no |
| Ageratina ligustrina (DC.) R.M. King & H. Rob. | Mexico | C.A. Purpus | 7588 | MO | Tropicos | 2419189 | no |
| Ageratina anisochroma (Klatt) R.M. King & H. Rob. | Costa Rica | A. Jiménez M. | 2005 | MO | Tropicos | 2419275 | no |
| Ageratina calaminthifolia (Kunth) R.M. King & H. Rob. | Mexico | James C. Hinton | 17882 | MO | Tropicos | 2419277 | yes |
| Ageratina ligustrina (DC.) R.M. King & H. Rob. | Mexico | R. Cedillo T., R. Torres y L. Rico | 1359 | MO | Tropicos | 2419289 | no |
| Ageratina ligustrina (DC.) R.M. King & H. Rob. | Mexico | Jose Rivera Reyes en colaboración con Gary J. Martin | 1322 | MO | Tropicos | 2419291 | no |
| Ageratina ligustrina (DC.) R.M. King & H. Rob. | Mexico | C.A. Purpus | 1490 | MO | Tropicos | 2419292 | no |
| Ageratina ligustrina (DC.) R.M. King & H. Rob. | Costa Rica | Alex Rodriguez, L.J. Poveda A. & Sandy Salas | 2005 | MO | Tropicos | 2419293 | no |
| Ageratina espinosarum (A. Gray) R.M. King & H. Rob. | Mexico | C.A. Purpus | 4797 | MO | Tropicos | 2419283 | no |
| Ageratina tomentella (Schrad.) R.M. King & H. Rob. | Mexico | P. Tenorio L., C. Romero de T., E. Martínez S. & R. Torres C. | s.n. | MO | Tropicos | 2419234 | no |
| Ageratina brandegeana (B.L. Rob.) R.M. King & H. Rob. | Mexico | Seemann | s.n. | MO | Tropicos | 2419257 | no |
| Ageratina vernalis (Vatke & Kurtz) R.M. King & H. Rob. | Mexico | J.A. Soule with L.A. Prather | 2920 | MO | Tropicos | 2419340 | no |
| Ageratina scorodonioides (A. Gray) R.M. King & H. Rob. | Mexico | C.A. Purpus | 1489 | MO | Tropicos | 2419331 | no |
| Ageratina pichinchensis bustamenta (DC.) R.M. King & H. Rob. | Panama | Mireya D. Correa A. | 1299 | MO | Tropicos | 2419342 | no |
| Ageratina pichinchensis bustamenta (DC.) R.M. King & H. Rob. | Panama | W.G. D'Arcy | 10865 | MO | Tropicos | 2419344 | no |
| Ageratina wrightii (A. Gray) R.M. King & H. Rob. | Mexico | D.E. Breedlove, F. Almeda | 58938 | MO | Tropicos | 2419347 | no |
| Ageratina muelleri (Sch. Bip. ex Klatt) R.M. King & H. Rob. | Mexico | Antonio Lot | 1059 | MO | Tropicos | 2419308 | no |
| Ageratina pichinchensis bustamenta (DC.) R.M. King & H. Rob. | Mexico | Oswado Téllez, S. Aguilar | s.n. | MO | Tropicos | 2419309 | no |
| Ageratina ligustrina (DC.) R.M. King & H. Rob. | Mexico | F. Ventura A. | 6035 | MO | Tropicos | 2419298 | no |
| Ageratina pichinchensis bustamenta (DC.) R.M. King & H. Rob. | Mexico | D.E. Breedlove, A.R. Smith | 31407 | MO | Tropicos | 2419319 | no |
| Ageratina pichinchensis bustamenta (DC.) R.M. King & H. Rob. | Mexico | Thomas B. Croat | 47694 | MO | Tropicos | 2419320 | no |
| Ageratina aschenborniana (S. Schauer) R.M. King & H. Rob. | Guatemala | Robert Merrill King | 7289 | MO | Tropicos | 2419322 | no |
| Ageratina prunellifolia (Kunth) R.M. King & H. Rob. | Mexico | WM. C. Leavenworth & H. Hoogstraal | 1160 | MO | Tropicos | 2419310 | no |
| Ageratina ligustrina (DC.) R.M. King & H. Rob. | Mexico | Benito Servín | 1280 | MO | Tropicos | 2419405 | no |
| Ageratina irrasa (B.L. Rob.) R.M. King & H. Rob. | Mexico | Rzedowski | s.n. | MO | Tropicos | 2419393 | no |
| Ageratina grashoffii B.L. Turner | Mexico | Gabriel Flores F. con P. Tenorio L. | 1436 | MO | Tropicos | 2419394 | no |
| Ageratina bustamenta (DC.) R.M. King & H. Rob. | Honduras | Cirilo Nelson & Ernesto Vargas | 2566 | MO | Tropicos | 2419421 | no |
| Ageratina Spach | Mexico | L.R. Stanford, K.L. Retherland & R.D. Northcraft | 688 | MO | Tropicos | 2419409 | no |
| Ageratina pichinchensis bustamenta (DC.) R.M. King & H. Rob. | Mexico | José C. Soto Núñez, Amada Román de Soto | s.n. | MO | Tropicos | 2419411 | no |
| Ageratina arsenei (B.L. Rob.) R.M. King & H. Rob. | Mexico | E. Matuda | s.n. | MO | Tropicos | 2419372 | no |
| Ageratina prunellifolia (Kunth) R.M. King & H. Rob. | Mexico | C.A. Purpus | 2771 | MO | Tropicos | 2419360 | no |
| Ageratina glabrata (Kunth) R.M. King & H. Rob. | Mexico | Willis A. Eggler | (1959) 148 | MO | Tropicos | 2419387 | no |
| Ageratina espinosarum (A. Gray) R.M. King & H. Rob. | Mexico | D. Nava, F. Nava y F. Castillo | 12 | MO | Tropicos | 2419388 | no |
| Ageratina choricephala (B.L. Rob.) R.M. King & H. Rob. | Mexico | C.G. Pringle | 10099 | MO | Tropicos | 2419377 | no |
| Ageratina brevipes (DC.) R.M. King & H. Rob. | Mexico | Bro. G. Arséne | s.n. | MO | Tropicos | 2419378 | no |
| Ageratina crassiramea (B.L. Rob.) R.M. King & H. Rob. | Mexico | Tom Wendt | 5917 | MO | Tropicos | 2419380 | no |
| Ageratina lucida (Ortega) R.M. King & H. Rob. | Mexico | C.A. Purpus | s.n. | MO | Tropicos | 2419464 | no |
| Ageratina bustamenta (DC.) R.M. King & H. Rob. | Mexico | C.A. Purpus | 2 | MO | Tropicos | 2419465 | no |
| Ageratina adenophora (Spreng.) R.M. King & H. Rob. | Mexico | Irmtraud Wagenbreth | s.n. | MO | Tropicos | 2419460 | no |
| Ageratina choricephala (B.L. Rob.) R.M. King & H. Rob. | Mexico | D.E. Breedlove | 44463 | MO | Tropicos | 2419461 | no |
| Ageratina anisochroma (Klatt) R.M. King & H. Rob. | Costa Rica | R.L. Wilbur & Frank Almeda | 16899 | MO | Tropicos | 2419473 | no |
| Ageratina calaminthifolia (Kunth) R.M. King & H. Rob. | Mexico | D.E. Breedlove, B. Anderson | 63992 | MO | Tropicos | 2419475 | no |
| Ageratina areolaris (DC.) Gage ex B.L. Turner | Mexico | A.J. Sharp | s.n. | MO | Tropicos | 2419476 | no |
| Ageratina saltillensis (B.L. Rob.) R.M. King & H. Rob. | Mexico | Robert Merrill King & Miguel A. Carranza P. | 10347 | MO | Tropicos | 2419432 | no |
| Ageratina pazcuarensis (Kunth) R.M. King & H. Rob. | Mexico | R. Hernández R. | 106 | MO | Tropicos | 2419423 | no |
| Ageratina mairetiana (DC.) R.M. King & H. Rob. | Mexico | C.G. Pringle | s.n. | MO | Tropicos | 2419426 | no |
| Ageratina salicifolia R.M. King & H. Rob. | Mexico | Rogers McVaugh | 23611 | MO | Tropicos | 2419427 | no |
| Ageratina aschenborniana (S. Schauer) R.M. King & H. Rob. | Guatemala | Robert Merrill King | 7312 | MO | Tropicos | 2419428 | no |
| Ageratina rivalis (Greenm.) R.M. King & H. Rob. | Mexico | Rzedowski | s.n. | MO | Tropicos | 2419429 | no |
| Ageratina wrightii (A. Gray) R.M. King & H. Rob. | Mexico | Edward Palmer | 557 | MO | Tropicos | 2419448 | no |
| Ageratina triniona (McVaugh) R.M. King & H. Rob. | Mexico | R.L. Oliver, D.F. Austin & D. MacBryde | 690 | MO | Tropicos | 2419440 | no |
| Ageratina chiriquensis (B.L. Rob.) R.M. King & H. Rob. | Panama | Thomas B. Croat | 34922 | MO | Tropicos | 2419441 | no |
| Ageratina pichinchensis bustamenta (DC.) R.M. King & H. Rob. | Panama | Barry Hammel | 1381 | MO | Tropicos | 2419443 | no |
| Ageratina ixiocladon (Benth.) R.M. King & H. Rob. | Panama | Thomas B. Croat | 13728 | MO | Tropicos | 2419444 | no |
| Ageratina petiolaris (Moc. ex DC.) R.M. King & H. Rob. | Mexico | C.G. Pringle | 238 | MO | Tropicos | 2419527 | no |
| Ageratina rivalis (Greenm.) R.M. King & H. Rob. | Mexico | Ricardo López Luna con Gary J. Martin | 0272 | MO | Tropicos | 2419528 | no |
| Ageratina pazcuarensis (Kunth) R.M. King & H. Rob. | Mexico | M. Medina Cota | 958 | MO | Tropicos | 2419522 | no |
| Ageratina peracuminata R.M. King & H. Rob. | Mexico | A. Cronquist & M. Sousa | 10513 | MO | Tropicos | 2419525 | no |
| Ageratina pichinchensis bustamenta (DC.) R.M. King & H. Rob. | Panama | W.G. D'Arcy | 12154 | MO | Tropicos | 2419546 | no |
| Ageratina capillipes R.M. King & H. Rob. | Mexico | Thomas B. Croat | 47287 | MO | Tropicos | 2419538 | no |
| Ageratina irrasa (B.L. Rob.) R.M. King & H. Rob. | Mexico | A. Ventura A. | s.n. | MO | Tropicos | 2419495 | no |
| Ageratina ligustrina (DC.) R.M. King & H. Rob. | Guatemala | J.A. Soule & L.A. Prather | 3023 | MO | Tropicos | 2419499 | no |
| Ageratina ligustrina (DC.) R.M. King & H. Rob. | Mexico | George B. Hinton | 3321 | MO | Tropicos | 2419500 | no |
| Ageratina ligustrina (DC.) R.M. King & H. Rob. | Mexico | Abisaí García Mendoza y R. Torres | 2016 | MO | Tropicos | 2419501 | no |
| Ageratina espinosarum (A. Gray) R.M. King & H. Rob. | Mexico | A. Ventura A. | 1943 | MO | Tropicos | 2419488 | no |
| Ageratina jaliscensis (B.L. Rob.) Gage ex B.L. Turner | Mexico | Ynes Mexia | 1553 | MO | Tropicos | 2419492 | no |
| Ageratina muelleri (Sch. Bip. ex Klatt) R.M. King & H. Rob. | Mexico | Rzedowski | 41262A | MO | Tropicos | 2419512 | no |
| Ageratina bustamenta (DC.) R.M. King & H. Rob. | Mexico | Thomas B. Croat | 48287 | MO | Tropicos | 2419513 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Costa Rica | Robert Merrill King | 6770 | MO | Tropicos | 2419517 | no |
| Ageratina mairetiana (DC.) R.M. King & H. Rob. | Mexico | Stephen D. Koch | s.n. | MO | Tropicos | 2419506 | no |
| Ageratina ligustrina (DC.) R.M. King & H. Rob. | Mexico | M. Nee | 23499 | MO | Tropicos | 2419508 | no |
| Ageratina campyloclada (B.L. Rob.) R.M. King & H. Rob. | Mexico | Ora M. Clark | 6747 | MO | Tropicos | 2419590 | no |
| Ageratina deltoidea (Jacq.) R.M. King & H. Rob. | Mexico | M.Bourgeau | 247 | MO | Tropicos | 2419591 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Mexico | C.G. Pringle | 8028 | MO | Tropicos | 2419595 | yes |
| Ageratina brevipes (DC.) R.M. King & H. Rob. | Mexico | A. Ventura A. | 401 | MO | Tropicos | 2419582 | no |
| Ageratina macvaughii R.M. King & H. Rob. | Mexico | Bro. G. Arséne | s.n. | MO | Tropicos | 2419606 | no |
| Ageratina hyssopina (A. Gray) R.M. King & H. Rob. | Mexico | Howard Scott Gentry | s.n. | MO | Tropicos | 2419598 | no |
| Ageratina irrasa (B.L. Rob.) R.M. King & H. Rob. | Mexico | Rzedowski | s.n. | MO | Tropicos | 2419599 | no |
| Ageratina kupperi (Suess.) R.M. King & H. Rob. | Panama | L.D. Gómez P., I.A. Chacón G., G. Herrera C. & G. Davidse | 22463 | MO | Tropicos | 2419600 | no |
| Ageratina havanensis (Kunth) R.M. King & H. Rob. | Mexico | C.A. Purpus | 4806 | MO | Tropicos | 2419603 | no |
| Ageratina ligustrina (DC.) R.M. King & H. Rob. | Mexico | Marino Rosas R. | 1419 | MO | Tropicos | 2419605 | no |
| Ageratina calaminthifolia (Kunth) R.M. King & H. Rob. | Mexico | P. Tenorio L., C. Romero de T. | 1047 | MO | Tropicos | 2419559 | no |
| Ageratina calophylla (Greene) R.M. King & H. Rob. | Mexico | Robert Merrill King & José A. Villarreal Q. | 10376 | MO | Tropicos | 2419560 | no |
| Ageratina prunellifolia (Kunth) R.M. King & H. Rob. | Mexico | Arthus Cronquist | 11734 | MO | Tropicos | 2419557 | no |
| Ageratina brevipes (DC.) R.M. King & H. Rob. | Mexico | C.G. Pringle | 13272 | MO | Tropicos | 2419580 | no |
| Ageratina grandidentata (DC.) R.M. King & H. Rob. | Mexico | Howard Scott Gentry | 1943 | MO | Tropicos | 2419661 | no |
| Ageratina pichinchensis bustamenta (DC.) R.M. King & H. Rob. | Panama | Thomas B. Croat | 13626 | MO | Tropicos | 2419646 | no |
| Ageratina ligustrina (DC.) R.M. King & H. Rob. | Mexico | Berlandier | 726 | MO | Tropicos | 2419673 | no |
| Ageratina ixiocladon (Benth.) R.M. King & H. Rob. | Panama | W.G. D'Arcy | 10686 | MO | Tropicos | 2419667 | no |
| Ageratina pringlei (B.L. Rob. & Greenm.) R.M. King & H. Rob. | Mexico | Alush Shilom Ton | 8135 | MO | Tropicos | 2419614 | no |
| Ageratina ovilla (Standl. & Steyerm.) R.M. King & H. Rob. | Mexico | Thomas B. Croat | 48184 | MO | Tropicos | 2419619 | no |
| Ageratina vernalis (Vatke & Kurtz) R.M. King & H. Rob. | Mexico | D.E. Breedlove, B. Bartholomew | 66864 | MO | Tropicos | 2419640 | no |
| Ageratina petiolaris (Moc. ex DC.) R.M. King & H. Rob. | Mexico | Dr. Edward Palmer | 10 | MO | Tropicos | 2419631 | no |
| Ageratina rothrockii (A. Gray) R.M. King & H. Rob. | Mexico | Robert Merrill King, Paul M.Peterson | 9877 | MO | Tropicos | 2419633 | no |
| Ageratina subcordata (Benth.) R.M. King & H. Rob. | Costa Rica | N. Garwood, M. Gibby, R. J. Hampshire & C. J. Humphries | s.n. | MO | Tropicos | 2419635 | no |
| Ageratina mairetiana (DC.) R.M. King & H. Rob. | Mexico | A.Ventura A. | s.n. | MO | Tropicos | 2419718 | no |
| Ageratina ligustrina (DC.) R.M. King & H. Rob. | Mexico | D. E. Breedlove | 40922 | MO | Tropicos | 2419714 | no |
| Ageratina ligustrina (DC.) R.M. King & H. Rob. | Mexico | D. E. Breedlove | 29468 | MO | Tropicos | 2419715 | no |
| Ageratina Spach | Ecuador | Thomas B. Croat, G. Ferry & C. Davidson | 93227 | MO | Tropicos | 2418248 | no |
| Ageratina lucida (Ortega) R.M. King & H. Rob. | Mexico | Ernest Lyonnet | s.n. | MO | Tropicos | 2423666 | no |
| Ageratina pichinchensis bustamenta (DC.) R.M. King & H. Rob. | Mexico | M. Bourgeau | s.n. | MO | Tropicos | 2423668 | no |
| Ageratina petiolaris (Moc. ex DC.) R.M. King & H. Rob. | Mexico | C. C. Parry, Ed. Palmer | 343 | MO | Tropicos | 2423669 | no |
| Ageratina anisochroma (Klatt) R.M. King & H. Rob. | Costa Rica | Thomas B. Croat | 47002 | MO | Tropicos | 2423754 | no |
| Ageratina rubricaulis (Kunth) R.M. King & H. Rob. | Mexico | J. Garcia P. y M. González L. | 1923 | MO | Tropicos | 2423756 | no |
| Ageratina calophylla (Greene) R.M. King & H. Rob. | Mexico | J. L.Gregg | 33 | MO | Tropicos | 2423755 | yes |
| Ageratina pacifica (B.L. Rob.) R.M. King & H. Rob. | Mexico | Herbert L. Mason | 1666 | MO | Tropicos | 2423757 | no |
| Ageratina brevipes (DC.) R.M. King & H. Rob. | Mexico | A. Ventura A. | 3328 | MO | Tropicos | 2423749 | no |
| Ageratina calaminthifolia (Kunth) R.M. King & H. Rob. | Mexico | A. Romo de Vivar | 16 | MO | Tropicos | 2423769 | no |
| Ageratina calaminthifolia (Kunth) R.M. King & H. Rob. | Mexico | Leslie A. Kenoyer | s.n. | MO | Tropicos | 2423771 | no |
| Ageratina anisochroma (Klatt) R.M. King & H. Rob. | Costa Rica | Wilbur , R.L. & D.E. Stone | 10637 | MO | Tropicos | 2423768 | no |
| Ageratina areolaris (DC.) Gage ex B.L. Turner | Mexico | C.G. Pringle | s.n. | MO | Tropicos | 2423767 | no |
| Ageratina pringlei (B.L. Rob. & Greenm.) R.M. King & H. Rob. | Mexico | D.E. Breedlove | 49784 | MO | Tropicos | 2423721 | no |
| Ageratina prunellifolia (Kunth) R.M. King & H. Rob. | Mexico | C.G. Pringle | s.n. | MO | Tropicos | 2423724 | no |
| Ageratina palmeri (A. Gray) Gage ex B.L. Turner | Mexico | P. Tenorio L. C. Romero T. Con J. Ignacio S. Patricia Davila | 10040 | MO | Tropicos | 2423716 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Costa Rica | A. Rodríguez G., L.D. Vargas & P. Hurtado | 4198 | MO | Tropicos | 2423818 | no |
| Ageratina pazcuarensis (Kunth) R.M. King & H. Rob. | Mexico | James L. Reveal, Raymond M. Harley | 4102 | MO | Tropicos | 2423819 | no |
| Ageratina pichinchensis bustamenta (DC.) R.M. King & H. Rob. | Mexico | John Brett | 725 | MO | Tropicos | 2423824 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Mexico | R. Fernández N. | 3066 | MO | Tropicos | 2423812 | no |
| Ageratina pichinchensis bustamenta (DC.) R.M. King & H. Rob. | Mexico | Ernest Lyonnet | s.n. | MO | Tropicos | 2423813 | no |
| Ageratina anisochroma (Klatt) R.M. King & H. Rob. | Panama | Edwin L. Tyson & Horace Loftin | 5996 | MO | Tropicos | 2423835 | no |
| Ageratina pichinchensis bustamenta (DC.) R.M. King & H. Rob. | Panama | Robert J. Schmalzel | 1475 | MO | Tropicos | 2423840 | no |
| Ageratina petiolaris (Moc. ex DC.) R.M. King & H. Rob. | Mexico | P. Sanchez R. | 290 | MO | Tropicos | 2423825 | no |
| Ageratina rhomboidea (Kunth) R.M. King & H. Rob. | Mexico | Rzedowski | s.n. | MO | Tropicos | 2423827 | no |
| Ageratina scorodonioides (A. Gray) R.M. King & H. Rob. | Mexico | D. Dunn, D. Thurm, S. Trott, C. Dziekanowski & P. Case | 23322 | MO | Tropicos | 2423831 | no |
| Ageratina glabrata (Kunth) R.M. King & H. Rob. | Mexico | Leslie A. Kenoyer | 685 | MO | Tropicos | 2423787 | no |
| Ageratina glabrata (Kunth) R.M. King & H. Rob. | Mexico | Hanover | s.n. | MO | Tropicos | 2423790 | no |
| Ageratina subcordata (Benth.) R.M. King & H. Rob. | Costa Rica | K. Utley | 6111 | MO | Tropicos | 2423791 | no |
| Ageratina durangensis (B.L. Rob.) R.M. King & H. Rob. | Mexico | C.G. Pringle | s.n. | MO | Tropicos | 2423784 | no |
| Ageratina lasioneura (Hook. & Arn.) R.M. King & H. Rob. | Mexico | Ynes Mexia | 1859 | MO | Tropicos | 2423783 | no |
| Ageratina ligustrina (DC.) R.M. King & H. Rob. | Guatemala | James L. Luteyn & Frank Almeda jr. | 3549 | MO | Tropicos | 2423794 | no |
| Ageratina ligustrina (DC.) R.M. King & H. Rob. | Mexico | Miles F. Johnson & Gerald B. Ownbey | 1958 | MO | Tropicos | 2423796 | no |
| Ageratina havanensis (Kunth) R.M. King & H. Rob. | Mexico | C.A. Purpus | 4805 | MO | Tropicos | 2423795 | no |
| Ageratina ligustrina (DC.) R.M. King & H. Rob. | Mexico | George B. Hinton & James C. Hinton | 14236 | MO | Tropicos | 2423798 | yes |
| Ageratina hidalgensis (H. Rob.) R.M. King & H. Rob. | Mexico | R. Fernández N. | s.n. | MO | Tropicos | 2423886 | no |
| Ageratina espinosarum (A. Gray) R.M. King & H. Rob. | Mexico | Robert Merrill King & José A. Villarreal Q. | 10345 | MO | Tropicos | 2423888 | no |
| Ageratina crassiramea (B.L. Rob.) R.M. King & H. Rob. | Mexico | Rogers McVaugh | 22646 | MO | Tropicos | 2423874 | no |
| Ageratina choricephala (B.L. Rob.) R.M. King & H. Rob. | Mexico | Bro. G. Arséne | 5302 | MO | Tropicos | 2423873 | no |
| Ageratina collodes (B.L. Rob. & Greenm.) R.M. King & H. Rob. | Mexico | Laura López López con Gary J. Martin | 0326 | MO | Tropicos | 2423875 | no |
| Ageratina subcordata (Benth.) R.M. King & H. Rob. | Costa Rica | K. Utley | 6125 | MO | Tropicos | 2423889 | no |
| Ageratina ligustrina (DC.) R.M. King & H. Rob. | Mexico | C.G. Pringle | 11825 | MO | Tropicos | 2423891 | no |
| Ageratina ligustrina (DC.) R.M. King & H. Rob. | Mexico | Abisai García Mendoza, D. Lorence y R. Torres | 1288 | MO | Tropicos | 2423893 | no |
| Ageratina lucida (Ortega) R.M. King & H. Rob. | Mexico | Rafael Torres C.,Cipriano Martínez | s.n. | MO | Tropicos | 2423895 | no |
| Ageratina wrightii (A. Gray) R.M. King & H. Rob. | Mexico | Edward Palmer | 289 | MO | Tropicos | 2423844 | no |
| Ageratina amblyolepis (B.L. Rob.) R.M. King & H. Rob. | Mexico | C.G. Pringle | 8034 | MO | Tropicos | 2423867 | yes |
| Ageratina brevipes (DC.) R.M. King & H. Rob. | Mexico | M. Bouijean | s.n. | MO | Tropicos | 2423872 | no |
| Ageratina areolaris (DC.) Gage ex B.L. Turner | Mexico | Bro. G. Arséne | s.n. | MO | Tropicos | 2423863 | no |
| Ageratina pichinchensis bustamenta (DC.) R.M. King & H. Rob. | Panama | Michael Nee | 9970 | MO | Tropicos | 2423937 | no |
| Ageratina pichinchensis bustamenta (DC.) R.M. King & H. Rob. | Mexico | Thomas B. Croat | 47277 | MO | Tropicos | 2423914 | no |
| Ageratina pazcuarensis (Kunth) R.M. King & H. Rob. | Mexico | Jamie Bonilla y C. Thomas Philbrick | 1330 | MO | Tropicos | 2423918 | no |
| Ageratina bustamenta (DC.) R.M. King & H. Rob. | Mexico | R.W. Long & D. Burch | 3101 | MO | Tropicos | 2423905 | no |
| Ageratina pringlei (B.L. Rob. & Greenm.) R.M. King & H. Rob. | Mexico | J.A. Soule with R. Day & E. Harris | 2144 | MO | Tropicos | 2423930 | no |
| Ageratina chiriquensis (B.L. Rob.) R.M. King & H. Rob. | Panama | Barry E. Hammel | 5649 | MO | Tropicos | 2423932 | no |
| Ageratina scorodonioides (A. Gray) R.M. King & H. Rob. | Mexico | Rafael Hernández Magaña & R. Hernández V. | 4684 | MO | Tropicos | 2423931 | no |
| Ageratina ixiocladon (Benth.) R.M. King & H. Rob. | Panama | Barry Hammel | 2814 | MO | Tropicos | 2423934 | no |
| Ageratina pichinchensis bustamenta (DC.) R.M. King & H. Rob. | Panama | Mireya D. Correa A. & Robert L. Lazor | 1417 | MO | Tropicos | 2423933 | no |
| Ageratina Spach | Mexico | Jose Rivera Reyes, Gary J. Martin | 0995 | MO | Tropicos | 2423922 | no |
| Ageratina scorodonioides (A. Gray) R.M. King & H. Rob. | Mexico | J.A. Soule & D.R. Brunner | 2239 | MO | Tropicos | 2423923 | no |
| Ageratina subcordata (Benth.) R.M. King & H. Rob. | Costa Rica | N. Garwood, M. Gibby, R.J. Hampshire & C.J. Humphries | s.n. | MO | Tropicos | 2423927 | no |
| Ageratina pazcuarensis (Kunth) R.M. King & H. Rob. | Mexico | R. Hernández R. | 277 | MO | Tropicos | 2424070 | no |
| Ageratina glabrata (Kunth) R.M. King & H. Rob. | Mexico | Mariano Martínez | 4 | MO | Tropicos | 2424059 | no |
| Ageratina glauca (Sch. Bip. ex Klatt) R.M. King & H. Rob. | Mexico | Abisai Garcia Mendoza, D.H. Lorence y R. Cedillo. | 593 | MO | Tropicos | 2424056 | no |
| Ageratina calaminthifolia (Kunth) R.M. King & H. Rob. | Mexico | Dr. Edward Palmer | 318 | MO | Tropicos | 2424109 | yes |
| Ageratina anisochroma (Klatt) R.M. King & H. Rob. | Panama | Peggy White | 59 | MO | Tropicos | 2424103 | no |
| Ageratina rubricaulis (Kunth) R.M. King & H. Rob. | Mexico | Edward Palmer | 165 | MO | Tropicos | 2424102 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Colombia | R. Fonnegra, et al. | 5390 | MO | Tropicos | 1061258 | no |
| Ageratina Spach | Ecuador | John L. Clark, B. Greene, T, Harris, J. Smith & C. Watt. | 1225 | MO | Tropicos | 1064081 | no |
| Ageratina azangaroensis (Sch. Bip. ex Wedd.) R.M. King & H. Rob. | Ecuador | John L. Clark, T. Harris, T. Sulser, C. Teixeira, & S. Baño. | 1829 | MO | Tropicos | 1064324 | no |
| Ageratina tambillensis (Hieron.) R.M. King & H. Rob. | Peru | Eric Rodríguez | 672 | MO | Tropicos | 1062375 | no |
| Ageratina dendroides (Spreng.) R.M. King & H. Rob. | Ecuador | Thomas B. Croat | 50735 | MO | Tropicos | 1056554 | no |
| Ageratina dendroides (Spreng.) R.M. King & H. Rob. | Ecuador | Aída Alvarez & M. Tirado | 1538 | MO | Tropicos | 1083799 | yes |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Nicaragua | W.D. Stevens | 7541 | MO | Tropicos | 1090302 | no |
| Ageratina exsertovenosa (Klatt) R.M. King & H. Rob. | Ecuador | Knight, Dennis H. | 793 | MO | Tropicos | 1090444 | no |
| Ageratina pichinchensis bustamenta (DC.) R.M. King & H. Rob. | Panama | W. D'Arcy, B. Hammel, E.C. Hill, S. Schwartz, O. Wolcott & H. Wolcott | 12864 | MO | Tropicos | 1052373 | no |
| Ageratina pichinchensis bustamenta (DC.) R.M. King & H. Rob. | Panama | W.G. D'Arcy, B. Hammel, E.C. Hill, S. Schwartz, O. Wolcott & H. Wolcott | 12787 | MO | Tropicos | 1052828 | no |
| Ageratina anisochroma (Klatt) R.M. King & H. Rob. | Panama | Barry E. Hammel, W.G. D'Arcy & John E. Averett | 6517 | MO | Tropicos | 1052873 | no |
| Ageratina ixiocladon (Benth.) R.M. King & H. Rob. | Panama | J.E. Averett, W.G. D'Arcy & Barry E. Hammel | 1046 | MO | Tropicos | 1052882 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Panama | J.E. Averett, W.G. D'Arcy & Barry E. Hammel | 1076 | MO | Tropicos | 1052883 | no |
| Ageratina chiriquensis (B.L. Rob.) R.M. King & H. Rob. | Panama | W. D'Arcy, B. Hammel, E.C. Hill, S. Schwartz, O. & H. Wolcott | 13280 | MO | Tropicos | 1052885 | no |
| Ageratina Spach | Panama | J.E. Averett, W.G. D'Arcy & Barry E. Hammel | 1108 | MO | Tropicos | 1052881 | no |
| Ageratina herrerae R.M. King & H. Rob. | Panama | W. D'Arcy, B. Hammel, E.C. Hill, S. Schwartz, O. Wolcott & H. Wolcott | 12859 | MO | Tropicos | 1052890 | no |
| Ageratina chiriquensis (B.L. Rob.) R.M. King & H. Rob. | Panama | W.G. D'Arcy & Barry E. Hammel | 12402 | MO | Tropicos | 1052889 | no |
| Ageratina pseudochilca (Benth.) R.M. King & H. Rob. | Ecuador | Eduardo Kohn | 1325 | MO | Tropicos | 1053510 | no |
| Ageratina pseudochilca (Benth.) R.M. King & H. Rob. | Ecuador | Homero Vargas, T. Núñez & E. Freire | 243 | MO | Tropicos | 1064640 | no |
| Ageratina pseudochilca (Benth.) R.M. King & H. Rob. | Ecuador | Knight, Dennis H. | 563 | MO | Tropicos | 1078498 | no |
| Ageratina gracilis (Kunth) R.M. King & H. Rob. | Ecuador | Inés Padilla,E.Freire,M.Reina,G.Andrade,S.Vásquez | 3158 | MO | Tropicos | 1082403 | no |
| Ageratina azangaroensis (Sch. Bip. ex Wedd.) R.M. King & H. Rob. | Ecuador | Homero Vargas & M. Villacís | 163 | MO | Tropicos | 1082585 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Ecuador | Dodson, C.H. & L.B. Thien | 736 | MO | Tropicos | 1099358 | no |
| Ageratina pseudochilca (Benth.) R.M. King & H. Rob. | Ecuador | Dodson, C.H. & L.B. Thien | 802 | MO | Tropicos | 1099363 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Ecuador | Dodson, C.H. & L.B. Thien | 601 | MO | Tropicos | 1099347 | no |
| Ageratina cutervensis (Hieron.) R.M. King & H. Rob. | Ecuador | Dodson, C.H. & L.B. Thien | 1869 | MO | Tropicos | 1099427 | no |
| Ageratina kupperi (Suess.) R.M. King & H. Rob. | Costa Rica | Gerrit Davidse & Richard W. Pohl | 1551 | MO | Tropicos | 1100527 | no |
| Ageratina sodiroi (Hieron.) R.M. King & H. Rob. | Ecuador | Thomas B. Croat | 50742 | MO | Tropicos | 1001075 | no |
| Ageratina adenophora (Spreng.) R.M. King & H. Rob. | Zambia | M.G. Bingham | 8562 | MO | Tropicos | 1095012 | yes |
| Ageratina popayanensis (Hieron.) R.M. King & H. Rob. | Colombia | E. Muñoz, et al. | 543 | MO | Tropicos | 1127625 | no |
| Ageratina anisochroma (Klatt) R.M. King & H. Rob. | Nicaragua | J.M. Greenman & M.T. Greenman | 5801 | MO | Tropicos | 1185800 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Nicaragua | V. Molina | 96 | MO | Tropicos | 1185931 | no |
| Ageratina Spach | Bolivia, Plurinational State of | F. Mamani & A. Jardim | 404 | MO | Tropicos | 1195384 | no |
| Ageratina popayanensis (Hieron.) R.M. King & H. Rob. | Colombia | Thomas B. Croat & John F. Gaskin | 80140 | MO | Tropicos | 1194316 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Colombia | F.J. Roldan | 279 | MO | Tropicos | 1205203 | no |
| Ageratina popayanensis (Hieron.) R.M. King & H. Rob. | Colombia | A. Gomez, et al. | 150 | MO | Tropicos | 1205216 | no |
| Ageratina altissima var. altissima | United States | A.E. Brant | 3655 | MO | Tropicos | 1199428 | no |
| Ageratina altissima var. altissima | United States | A.E. Brant | 3917 | MO | Tropicos | 1286375 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Peru | Alwyn H. Gentry | 23197 | MO | Tropicos | 1286525 | no |
| Ageratina Spach | Colombia | H.G. Barclay | 10415 | MO | Tropicos | 1285831 | no |
| Ageratina herbacea (A. Gray) R.M. King & H. Rob. | United States | A.E. Brant & J. Stone | 3965 | MO | Tropicos | 1287331 | no |
| Ageratina azangaroensis (Sch. Bip. ex Wedd.) R.M. King & H. Rob. | Ecuador | P.M. Ramsay & P.J. Merrow-Smith | 87 | MO | Tropicos | 1293181 | no |
| Ageratina azangaroensis (Sch. Bip. ex Wedd.) R.M. King & H. Rob. | Ecuador | Homero Vargas, E. Narváez & S. Orellana | 2531 | MO | Tropicos | 1294353 | no |
| Ageratina exsertovenosa (Klatt) R.M. King & H. Rob. | Ecuador | P.M. Ramsay & P.J. Merrow-Smith | 600 | MO | Tropicos | 1295179 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Ecuador | P.M. Ramsay & P.J. Merrow-Smith | 582 | MO | Tropicos | 1295166 | no |
| Ageratina azangaroensis (Sch. Bip. ex Wedd.) R.M. King & H. Rob. | Ecuador | P.M. Ramsay & P.J. Merrow-Smith | 432 | MO | Tropicos | 1293348 | no |
| Ageratina azangaroensis (Sch. Bip. ex Wedd.) R.M. King & H. Rob. | Ecuador | Homero Vargas, E. Narváez et al. | 1984 | MO | Tropicos | 1293772 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Ecuador | Homero Vargas, E. Narváez & S. Orellana | 2312 | MO | Tropicos | 1294134 | no |
| Ageratina anisochroma (Klatt) R.M. King & H. Rob. | Costa Rica | W.D. Stevens | 13357 | MO | Tropicos | 1302255 | no |
| Ageratina anisochroma (Klatt) R.M. King & H. Rob. | Costa Rica | W.D. Stevens | 13434 | MO | Tropicos | 1304227 | no |
| Ageratina pseudochilca (Benth.) R.M. King & H. Rob. | Ecuador | Homero Vargas & C. Canaday | 1423 | MO | Tropicos | 1227440 | no |
| Ageratina glandulifera (Hieron.) R.M. King & H. Rob. | Ecuador | Homero Vargas & C. Canaday | 1428 | MO | Tropicos | 1227447 | no |
| Ageratina fastigiata (Kunth) R.M. King & H. Rob. | Peru | Henk van der Werff, B. Gray, R. Vasquez & R. Rojas | 15189 | MO | Tropicos | 1240122 | no |
| Ageratina glyptophlebia (B.L. Rob.) R.M. King & H. Rob. | Colombia | H.G. Barclay | 6482 | MO | Tropicos | 1246779 | no |
| Ageratina chachapoyasensis (Cuatrec.) R.M. King & H. Rob. | Peru | Camilo Díaz y Antonio Peña | 8841 | MO | Tropicos | 1243121 | no |
| Ageratina crassiramea (B.L. Rob.) R.M. King & H. Rob. | Nicaragua | W.D. Stevens | 6267 | MO | Tropicos | 1248742 | no |
| Ageratina zinniifolia (B.L. Rob.) R.M. King & H. Rob. | Colombia | H.G. Barclay & P. Juajibioy | 6900 | MO | Tropicos | 1248757 | yes |
| Ageratina zinniifolia (B.L. Rob.) R.M. King & H. Rob. | Colombia | H.G. Barclay | 6919 | MO | Tropicos | 1248819 | no |
| Ageratina flaviseta (B.L. Rob.) R.M. King & H. Rob. | Colombia | Killip, E.P. & A.C. Smith | 17769 | MO | Tropicos | 1249130 | yes |
| Ageratina helenae R.M. King & H. Rob. | El Salvador | Gerrit Davidse, Alex Monro, Karen Sidwell, Hector Matínez & Carlos Salazar | 37293 | MO | Tropicos | 1254859 | no |
| Ageratina bustamenta (DC.) R.M. King & H. Rob. | El Salvador | Karen Sidwell,Alex Monro, Gerrit Davidse & Carlos Ramirez | 424 | MO | Tropicos | 1255286 | no |
| Ageratina valerioi R.M. King & H. Rob. | El Salvador | Alex Monro, Gerrit Davidse, Karen Sidwell & Miguel Rellenos | 2192 | MO | Tropicos | 1255575 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Costa Rica | Reinaldo Aguilar & O. Garrote | 3831 | MO | Tropicos | 1259475 | no |
| Ageratina kupperi (Suess.) R.M. King & H. Rob. | Costa Rica | B. Gamboa R. & A. Picado | 1186 | MO | Tropicos | 1260006 | no |
| Ageratina reticulifera (Standl. & L.O. Williams) R.M. King & H. Rob. | Costa Rica | Billen Gamboa R. | 1566 | MO | Tropicos | 1260425 | no |
| Ageratina contigua R.M. King & H. Rob. | Costa Rica | Billen Gamboa R. | 1758 | MO | Tropicos | 1260636 | no |
| Ageratina ixiocladon (Benth.) R.M. King & H. Rob. | Costa Rica | J.F. Morales | 5162 | MO | Tropicos | 1256951 | no |
| Ageratina Spach | Costa Rica | J.F. Morales | 5190 | MO | Tropicos | 1257007 | no |
| Ageratina ixiocladon (Benth.) R.M. King & H. Rob. | Costa Rica | Reinaldo Aguilar | 4495 | MO | Tropicos | 1258127 | no |
| Ageratina pentlandiana (DC.) R.M. King & H. Rob. | Bolivia, Plurinational State of | M. Atahucachi, S. Arrázola y C. Antezana | 242 | MO | Tropicos | 3281078 | no |
| Ageratina sternbergiana (DC.) R.M. King & H. Rob. | Peru | M. Dillon | 2559 | MO | Tropicos | 3281475 | no |
| Ageratina sternbergiana (DC.) R.M. King & H. Rob. | Peru | Ramon Ferreyra | 12907 | MO | Tropicos | 3281582 | no |
| Ageratina sternbergiana (DC.) R.M. King & H. Rob. | Peru | Unknown | 0607 | MO | Tropicos | 3281673 | no |
| Ageratina sternbergiana (DC.) R.M. King & H. Rob. | Peru | James Aronson and Paul Berry | 507 | MO | Tropicos | 3281756 | no |
| Ageratina pseudochilca (Benth.) R.M. King & H. Rob. | Ecuador | Robert Merrill King, Paul M. Peterson, Emmet J. Judziewicz | 10077 | MO | Tropicos | 3281885 | no |
| Ageratina sternbergiana (DC.) R.M. King & H. Rob. | Peru | Gilles Robert Brunel | 951 | MO | Tropicos | 3283952 | no |
| Ageratina pentlandiana (DC.) R.M. King & H. Rob. | Peru | R. D. Metcalf | 30445 | MO | Tropicos | 3284227 | no |
| Ageratina Spach | Bolivia, Plurinational State of | R. de Michel | 47 | MO | Tropicos | 3284269 | no |
| Ageratina pentlandiana (DC.) R.M. King & H. Rob. | Peru | Jef D. Boeke & Susanne Boeke | 2991 | MO | Tropicos | 3284630 | no |
| Ageratina sternbergiana (DC.) R.M. King & H. Rob. | Peru | M. Dillon, U. Molau, P. Matekaitis | 3202 | MO | Tropicos | 3284893 | no |
| Ageratina pseudochilca (Benth.) R.M. King & H. Rob. | Ecuador | Robert Merrill King | 6695 | MO | Tropicos | 3282120 | no |
| Ageratina Spach | Ecuador | W. H. Camp | E-3727 | MO | Tropicos | 3282291 | no |
| Ageratina sternbergiana (DC.) R.M. King & H. Rob. | Bolivia, Plurinational State of | J. Fdez. Casas and J. Molero | 6475 | MO | Tropicos | 3282369 | no |
| Ageratina sternbergiana (DC.) R.M. King & H. Rob. | Bolivia, Plurinational State of | W.G. D'Arcy and Gaston Bejarano | 13868 | MO | Tropicos | 3282438 | no |
| Ageratina sternbergiana (DC.) R.M. King & H. Rob. | Bolivia, Plurinational State of | W.G. Arcy and Gaston Bejarano | 13876 | MO | Tropicos | 3282530 | no |
| Ageratina psilodora (B.L. Rob.) R.M. King & H. Rob. | Colombia | W.G.Bricker | 13968 | MO | Tropicos | 3282469 | no |
| Ageratina scopulorum (Wedd.) R.M. King & H. Rob. | Peru | Thomas Ducan with Lauramay Dempster, Marshall Bryan and Jane Kole | 2621 | MO | Tropicos | 3282906 | no |
| Ageratina sternbergiana (DC.) R.M. King & H. Rob. | Peru | O. Velarde | 5192 | MO | Tropicos | 3283038 | no |
| Ageratina sternbergiana (DC.) R.M. King & H. Rob. | Peru | Jef D. Boeke and Susanne Boeke | 3094 | MO | Tropicos | 3283144 | no |
| Ageratina Spach | Colombia | J. Cuatrecasa and R.E.Schultes and E. Smith | 12329 | MO | Tropicos | 3283141 | no |
| Ageratina theifolia (Benth.) R.M. King & H. Rob. | Colombia | Earl L. Core | 1585 | MO | Tropicos | 3283212 | no |
| Ageratina sternbergiana (DC.) R.M. King & H. Rob. | Bolivia, Plurinational State of | A. Fournet | 607 | MO | Tropicos | 3283289 | no |
| Ageratina sternbergiana (DC.) R.M. King & H. Rob. | Peru | O. Velarde | 213 | MO | Tropicos | 3283375 | no |
| Ageratina sternbergiana (DC.) R.M. King & H. Rob. | Bolivia, Plurinational State of | Robert Merrill Kuing et Luther Earl Bishop | 7612 | MO | Tropicos | 3283447 | no |
| Ageratina Spach | Argentina | A.L.Cabrera, N. Deginani, R. Giangualani, R. Kiesling, et F.O. Zuloaga | 26421 | MO | Tropicos | 3283537 | no |
| Ageratina popayanensis (Hieron.) R.M. King & H. Rob. | Colombia | R. Callejas, S. churchill, P. Acevedo, F. Saldarriaga | 2482 | MO | Tropicos | 3276036 | no |
| Ageratina tinifolia (Kunth) R.M. King & H. Rob. | Colombia | J. J. Triana | 1229 | MO | Tropicos | 3276039 | no |
| Ageratina pseudochilca (Benth.) R.M. King & H. Rob. | Ecuador | Robert Merrill King & Paul M. Peterson, Emmet J. Judziewicz | 10072 | MO | Tropicos | 3276016 | no |
| Ageratina articulata (Sch. Bip. ex Hieron.) R.M. King & H. Rob. | Venezuela, Bolivarian Republic of | H. Pittier | 13224 | MO | Tropicos | 3276012 | no |
| Ageratina azangaroensis (Sch. Bip. ex Wedd.) R.M. King & H. Rob. | Ecuador | Robert Merrill King | 6605 | MO | Tropicos | 3275988 | no |
| Ageratina azangaroensis (Sch. Bip. ex Wedd.) R.M. King & H. Rob. | Bolivia, Plurinational State of | Robert Merrill King & Luther Earl Bishop | 7414 | MO | Tropicos | 3276088 | no |
| Ageratina articulata (Sch. Bip. ex Hieron.) R.M. King & H. Rob. | Peru | J. Jaramillo, A. Sagástegui, E. Elvitez, R. Narváez | 750 | MO | Tropicos | 3276067 | no |
| Ageratina fastigiata (Kunth) R.M. King & H. Rob. | Colombia | Helen Schiefer | 901 | MO | Tropicos | 3276075 | no |
| Ageratina Spach | Bolivia, Plurinational State of | Nur Ritter | 2030 | MO | Tropicos | 3276074 | no |
| Ageratina choricephaloides (B.L. Rob.) R.M. King & H. Rob. | Peru | Robert Merrill King et Luther Earl Bishop | 9170 | MO | Tropicos | 3276068 | no |
| Ageratina paupercula (A. Gray) R.M. King & H. Rob. | Mexico | A.C. Sanders, S.A. Meyer, S. White & R. Scora | 14345 | MO | Tropicos | 3276282 | no |
| Ageratina azangaroensis (Sch. Bip. ex Wedd.) R.M. King & H. Rob. | Bolivia, Plurinational State of | Dr. Otto Buchtien | 540 | MO | Tropicos | 3276339 | no |
| Ageratina allenii (Standl.) R.M. King & H. Rob. | Costa Rica | Paul H. Allen | 597 | MO | Tropicos | 3279252 | no |
| Ageratina ligustrina (DC.) R.M. King & H. Rob. | Mexico | Stafford et al. | 209 | MO | Tropicos | 3279565 | no |
| Ageratina Spach | Colombia | E. K. Balls | B5729 | MO | Tropicos | 3323777 | no |
| Ageratina anchistea (Grashoff & Beaman) R.M. King & H. Rob. | Honduras | Paul C. Standley | 27471 | MO | Tropicos | 3309966 | no |
| Ageratina ixiocladon (Benth.) R.M. King & H. Rob. | Costa Rica | John F. Pruski | 435 | MO | Tropicos | 3429058 | no |
| Ageratina Spach | Ecuador | David Neill, C. Davidson & S. Christoph | 16006 | MO | Tropicos | 3428319 | no |
| Ageratina conspicua R.M. King & H. Rob. | Mexico | A.C. Sanders | 10659 | MO | Tropicos | 3357336 | no |
| Ageratina Spach | Bolivia, Plurinational State of | E. Cervantes | 139 | MO | Tropicos | 3359525 | no |
| Ageratina glechonophylla (Less.) R.M. King & H. Rob. | Peru | J. Mostacero L. et al. | 538 | MO | Tropicos | 3312393 | no |
| Ageratina Spach | Bolivia, Plurinational State of | J. Teran, M. Alcazar-Johansen & E. Zurita | 522 | MO | Tropicos | 3366133 | no |
| Ageratina Spach | Bolivia, Plurinational State of | J.P. Altamirano, E. Fernandez, A. Barrancos, G. Flores & H. Villca | 448 | MO | Tropicos | 3366176 | no |
| Ageratina Spach | Bolivia, Plurinational State of | N. Altamirano & J. Teran | 657 | MO | Tropicos | 3366451 | no |
| Ageratina Spach | Bolivia, Plurinational State of | S. Altamirano & M. Alcazar | 674 | MO | Tropicos | 3366857 | no |
| Ageratina Spach | Bolivia, Plurinational State of | S. Altamirano & M. Alcazar | 3 | MO | Tropicos | 3366888 | no |
| Ageratina Spach | Colombia | C. Barbosa C. | 2062 | MO | Tropicos | 3273946 | no |
| Ageratina pseudochilca (Benth.) R.M. King & H. Rob. | Ecuador | Grady L. Webster | 1988 | MO | Tropicos | 3273942 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Venezuela, Bolivarian Republic of | Robert Merrill King, Frank Almeda & Marjorie B, Knowles | 10534 | MO | Tropicos | 3274058 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Ecuador | Robert Merrill King | 6672 | MO | Tropicos | 3274032 | no |
| Ageratina gracilis (Kunth) R.M. King & H. Rob. | Colombia | J. Dwyer & Idrobo | 8167 | MO | Tropicos | 3273998 | no |
| Ageratina exsertovenosa (Klatt) R.M. King & H. Rob. | Ecuador | Robert Merrill King & Frank Almeda | 7908 | MO | Tropicos | 3274104 | no |
| Ageratina gracilis (Kunth) R.M. King & H. Rob. | Ecuador | James Grimes with Carol Todzia | 2481 | MO | Tropicos | 3274174 | no |
| Ageratina azangaroensis (Sch. Bip. ex Wedd.) R.M. King & H. Rob. | Bolivia, Plurinational State of | Timothy Johns | 82-105 | MO | Tropicos | 3274158 | no |
| Ageratina neriifolia (B.L. Rob.) R.M. King & H. Rob. | Venezuela, Bolivarian Republic of | Winfried Meir | 1327 | MO | Tropicos | 3274140 | no |
| Ageratina ampla (Benth.) R.M. King & H. Rob. | Colombia | Bro. Ariste-Joseph | B-16 | MO | Tropicos | 3274149 | no |
| Ageratina dendroides (Spreng.) R.M. King & H. Rob. | Ecuador | W. H. Camp | E-4507 | MO | Tropicos | 3274213 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Ecuador | Robert Merrill King | 6616 | MO | Tropicos | 3274195 | no |
| Ageratina Spach | Colombia | S. Castroviejo, Cardiel, Estrada, Fuertes & Fdz. Alonso | 10603 | MO | Tropicos | 3274287 | no |
| Ageratina azangaroensis (Sch. Bip. ex Wedd.) R.M. King & H. Rob. | Ecuador | Robert Merrill King with Alvaro E. Guevara & Victor E. Krantz | 6593 | MO | Tropicos | 3274273 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | Paraguay | Dr. E. Hassler | 8023 | MO | Tropicos | 3274253 | no |
| Ageratina glechonophylla (Less.) R.M. King & H. Rob. | Chile | C.R. Worth, J.L. Morrison | 16643 | MO | Tropicos | 3274362 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Venezuela, Bolivarian Republic of | Robert Merrill King, Frank almeda & Marjorie B. Knowles | 10514 | MO | Tropicos | 3274316 | no |
| Ageratina exsertovenosa (Klatt) R.M. King & H. Rob. | Peru | A. Lopez M. | 8084 | MO | Tropicos | 3274383 | no |
| Ageratina neriifolia (B.L. Rob.) R.M. King & H. Rob. | Venezuela, Bolivarian Republic of | Nidia Cuello, A. Licata y José Farreras | 2079 | MO | Tropicos | 3274496 | no |
| Ageratina exsertovenosa (Klatt) R.M. King & H. Rob. | Peru | I. Sanchez Vega | 579 | MO | Tropicos | 3274557 | no |
| Ageratina glechonophylla (Less.) R.M. King & H. Rob. | Chile | C.H. Worth, J.L. Morrison | 16422 | MO | Tropicos | 3274606 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Venezuela, Bolivarian Republic of | Robert Merrill King, Frank Almeda & Marjorie B. Knowles | 10436 | MO | Tropicos | 3274583 | no |
| Ageratina tinifolia (Kunth) R.M. King & H. Rob. | Colombia | E.P. Killip, Albert C. Smith | 17264 | MO | Tropicos | 3274694 | no |
| Ageratina baccharoides (Kunth) R.M. King & H. Rob. | Colombia | W.G. Bricker | 13963 | MO | Tropicos | 3274668 | yes |
| Ageratina Spach | Colombia | R. Jaramillo Mejía, Barbara Moreno et al. | 2 | MO | Tropicos | 3274667 | no |
| Ageratina exsertovenosa (Klatt) R.M. King & H. Rob. | Peru | M. Dillon & B.L. Turner | 1639 | MO | Tropicos | 3274669 | no |
| Ageratina exsertovenosa (Klatt) R.M. King & H. Rob. | Ecuador | Robert Merrill King & Frank Almeda | 7814 | MO | Tropicos | 3274646 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Venezuela, Bolivarian Republic of | Robert Merrill King | 10441 | MO | Tropicos | 3274754 | no |
| Ageratina cuzcoensis (Hieron.) R.M. King & H. Rob. | Peru | B. Payton & S. Tilney Payton | 1010 | MO | Tropicos | 3274727 | no |
| Ageratina neriifolia (B.L. Rob.) R.M. King & H. Rob. | Venezuela, Bolivarian Republic of | Robert Merrill King, Frank Almeda & Marjorie B. Knowles | 10438 | MO | Tropicos | 3274729 | no |
| Ageratina asclepiadea (L. f.) R.M. King & H. Rob. | Colombia | Francis W. Pennell | 2374 | MO | Tropicos | 3274726 | no |
| Ageratina exsertovenosa (Klatt) R.M. King & H. Rob. | Ecuador | Robert Merrill King & Fank Almeda | 7855 | MO | Tropicos | 3274819 | no |
| Ageratina baccharoides (Kunth) R.M. King & H. Rob. | Colombia | H.H. Rusby, F.W. Prennell | 1286 | MO | Tropicos | 3274792 | no |
| Ageratina ibaguensis (Sch. Bip. ex Hieron.) R.M. King & H. Rob. | Colombia | J. Cuatrecasa | 19427 | MO | Tropicos | 3274794 | no |
| Ageratina exsertovenosa (Klatt) R.M. King & H. Rob. | Ecuador | Robert Merrill King & Frank Almeda | 7843 | MO | Tropicos | 3274793 | no |
| Ageratina asclepiadea (L. f.) R.M. King & H. Rob. | Colombia | Fred A. Barkley, H. Garcia-Barriga, R. Vanegas | 170721 | MO | Tropicos | 3274844 | no |
| Ageratina Spach | Colombia | Michael Melampy | 622 | MO | Tropicos | 3274842 | no |
| Ageratina ibaguensis (Sch. Bip. ex Hieron.) R.M. King & H. Rob. | Venezuela, Bolivarian Republic of | A. Fendler | 642 | MO | Tropicos | 3274933 | no |
| Ageratina asclepiadea (L. f.) R.M. King & H. Rob. | Colombia | Helen Schiefer | 959 | MO | Tropicos | 3274915 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Colombia | José L. Fernández Alonso & Luz Mila Quiñoñes | 5098 | MO | Tropicos | 3274992 | no |
| Ageratina pseudochilca (Benth.) R.M. King & H. Rob. | Ecuador | robert Merrill King & Frank Almeda | 7754 | MO | Tropicos | 3275080 | yes |
| Ageratina baccharoides (Kunth) R.M. King & H. Rob. | Colombia | J.H. Hunziker | 12093 | MO | Tropicos | 3275078 | no |
| Ageratina asclepiadea (L. f.) R.M. King & H. Rob. | Colombia | W.G. Bricker | 13967 | MO | Tropicos | 3275059 | no |
| Ageratina tinifolia (Kunth) R.M. King & H. Rob. | Ecuador | P. Villacres | 267 | MO | Tropicos | 3275040 | no |
| Ageratina theifolia (Benth.) R.M. King & H. Rob. | Venezuela, Bolivarian Republic of | James L. Luteyn, Maria Lebron-Luteyn, L. ruiz-Teran, J.S. Dugarte | 5274 | MO | Tropicos | 3275036 | no |
| Ageratina Spach | Colombia | O. de Benavides, B.R. Ramírez | 4376 | MO | Tropicos | 3275116 | no |
| Ageratina gracilis (Kunth) R.M. King & H. Rob. | Colombia | Helen Schiefer | 344 | MO | Tropicos | 3275198 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Colombia | O. Rangel & Curso de Posqrado en Sistematica. | 5131 | MO | Tropicos | 3275179 | no |
| Ageratina exsertovenosa (Klatt) R.M. King & H. Rob. | Ecuador | Robert Merrill King & Frank Almeda | 7897 | MO | Tropicos | 3275275 | no |
| Ageratina ibaguensis (Sch. Bip. ex Hieron.) R.M. King & H. Rob. | Venezuela, Bolivarian Republic of | Luis Ruiz-Teran & Manuel Lopez-Figueiras | 38 | MO | Tropicos | 3275236 | no |
| Ageratina Spach | Ecuador | Benkt Sparre | 16885 | MO | Tropicos | 3275299 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Venezuela, Bolivarian Republic of | Robert Merrill King, Frank Almeda & Marjorie B, Knowles | 10455 | MO | Tropicos | 3275282 | no |
| Ageratina tinifolia (Kunth) R.M. King & H. Rob. | Colombia | E. Forero, A. Gentry, A. Sugden & D. Daly | 3651 | MO | Tropicos | 3275276 | no |
| Ageratina pseudochilca (Benth.) R.M. King & H. Rob. | Ecuador | Robert Merrill King | 6631 | MO | Tropicos | 3275389 | no |
| Ageratina gracilis (Kunth) R.M. King & H. Rob. | Colombia | E.P. Killip, Albert C. Smith | 17598 | MO | Tropicos | 3275387 | no |
| Ageratina gracilis (Kunth) R.M. King & H. Rob. | Colombia | Paul H. Allen | 2997 | MO | Tropicos | 3275463 | no |
| Ageratina ibaguensis (Sch. Bip. ex Hieron.) R.M. King & H. Rob. | Venezuela, Bolivarian Republic of | James L. Luteyn, Maria Lebron-Luteyn, L. Ruiz-Teran, J. A. Dugarte | 5266 | MO | Tropicos | 3275462 | no |
| Ageratina pseudochilca (Benth.) R.M. King & H. Rob. | Ecuador | Robert Merrill King abnd Robert M. Garvey | 6891 | MO | Tropicos | 3275443 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Venezuela, Bolivarian Republic of | Robert Merrill King & Frank Almeda & Marorie B. Knowles | 10480 | MO | Tropicos | 3275442 | no |
| Ageratina Spach | Ecuador | Benkt Sparre | 16565 | MO | Tropicos | 3275506 | no |
| Ageratina pentlandiana (DC.) R.M. King & H. Rob. | Peru | M. Dillon, U. Molau, & P. Matekaitis | 3108 | MO | Tropicos | 3275551 | no |
| Ageratina exsertovenosa (Klatt) R.M. King & H. Rob. | Peru | Robert Merrill King et Luther Earl Bishop | 9142 | MO | Tropicos | 3275550 | no |
| Ageratina gilbertii (B.L. Rob.) R.M. King & H. Rob. | Peru | M. Evangelista | s.n. | MO | Tropicos | 3275534 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Venezuela, Bolivarian Republic of | Robert Merril King | 10522 | MO | Tropicos | 3275630 | no |
| Ageratina asclepiadea (L. f.) R.M. King & H. Rob. | Colombia | J. Betancur, P. Franco y est. de profundizanción | 4115 | MO | Tropicos | 3275607 | no |
| Ageratina chachapoyasensis (Cuatrec.) R.M. King & H. Rob. | Peru | Jef D. Boeke | 1879 | MO | Tropicos | 3275717 | no |
| Ageratina azangaroensis (Sch. Bip. ex Wedd.) R.M. King & H. Rob. | Argentina | J. Frangi & R. Kiesling | 81 | MO | Tropicos | 3275716 | no |
| Ageratina gracilis (Kunth) R.M. King & H. Rob. | Colombia | C. Barbosa | 1477 | MO | Tropicos | 3275694 | no |
| Ageratina neriifolia (B.L. Rob.) R.M. King & H. Rob. | Venezuela, Bolivarian Republic of | Robert Merrill King, Frank Almeda & Marjorie B. Knowles | 10446 | MO | Tropicos | 3275677 | no |
| Ageratina articulata (Sch. Bip. ex Hieron.) R.M. King & H. Rob. | Peru | A. Lopez M. et A. Sagastegui A. | 8044 | MO | Tropicos | 3275676 | no |
| Ageratina cuencana (B.L. Rob.) R.M. King & H. Rob. | Peru | F. R. Fosberg | 27784 | MO | Tropicos | 3275755 | no |
| Ageratina articulata (Sch. Bip. ex Hieron.) R.M. King & H. Rob. | Peru | Jef D. Boeke & Susanne Boeke | 3055 | MO | Tropicos | 3275754 | no |
| Ageratina pseudochilca (Benth.) R.M. King & H. Rob. | Ecuador | Robert Merrill King abnd Paul M. Peterson, Emmet J. Judziewicz | 10114 | MO | Tropicos | 3275837 | no |
| Ageratina chachapoyasensis (Cuatrec.) R.M. King & H. Rob. | Peru | M.O. Dillon & D. Skillman | 4144 | MO | Tropicos | 3275835 | no |
| Ageratina articulata (Sch. Bip. ex Hieron.) R.M. King & H. Rob. | Peru | Robert Merrill King et Luther Earl Bishop | 9103 | MO | Tropicos | 3275834 | yes |
| Ageratina exsertovenosa (Klatt) R.M. King & H. Rob. | Peru | Robert Merrill King et Luther Earl Bishop | 9211 | MO | Tropicos | 3275814 | no |
| Ageratina tinifolia (Kunth) R.M. King & H. Rob. | Ecuador | J. Jaramillo, W. Jaramillo | 1215 | MO | Tropicos | 3275881 | no |
| Ageratina neriifolia (B.L. Rob.) R.M. King & H. Rob. | Venezuela, Bolivarian Republic of | W. Hahn & F. Grifo | 5046 | MO | Tropicos | 3275880 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Bolivia, Plurinational State of | Nur Ritter | 596 | MO | Tropicos | 3275970 | no |
| Ageratina gynoxoides (Wedd.) R.M. King & H. Rob. | Colombia | Lorenzo Uribe Uribe | 6885 | MO | Tropicos | 3275935 | no |
| Ageratina articulata (Sch. Bip. ex Hieron.) R.M. King & H. Rob. | Peru | I. Sanchez Vega | 447 | MO | Tropicos | 3275934 | no |
| Ageratina azangaroensis (Sch. Bip. ex Wedd.) R.M. King & H. Rob. | Ecuador | Robert Merrill King, Paul M. Peterson, Emmet J. Judziewicz | 10118 | MO | Tropicos | 3271982 | no |
| Ageratina Spach | Colombia | Edinson Muñoz C., Lorenzo Mejía, Gabriel J. Giraldo | 548 | MO | Tropicos | 3271963 | no |
| Ageratina exsertovenosa (Klatt) R.M. King & H. Rob. | Ecuador | W. H. Camp | E-4511 | MO | Tropicos | 3271949 | no |
| Ageratina neriifolia (B.L. Rob.) R.M. King & H. Rob. | Venezuela, Bolivarian Republic of | Carmen E. Benitez de Rojas, Francisco Rojas, Victor M. Badillo y Thirza Ruiz | 3779 | MO | Tropicos | 3272067 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Ecuador | Jenny F. Naranjo O. | 14 | MO | Tropicos | 3272047 | no |
| Ageratina viscosa (Kunth) R.M. King & H. Rob. | Colombia | Bro. Ariste-Joseph | 153A | MO | Tropicos | 3272055 | no |
| Ageratina azangaroensis (Sch. Bip. ex Wedd.) R.M. King & H. Rob. | Ecuador | Robert Merrill King & Emmet J. Judziewicz | 10168 | MO | Tropicos | 3272024 | no |
| Ageratina popayanensis (Hieron.) R.M. King & H. Rob. | Colombia | Felipe A. Silverstone-Sopkin con N. Paz, A. Duque, H. Bayona | 1772 | MO | Tropicos | 3272087 | no |
| Ageratina dendroides (Spreng.) R.M. King & H. Rob. | Ecuador | Robert Merrill King, & Robert M. Garvey | 6912 | MO | Tropicos | 3272084 | no |
| Ageratina viscosa (Kunth) R.M. King & H. Rob. | Colombia | Helen Schiefer | 878 | MO | Tropicos | 3272177 | no |
| Ageratina popayanensis (Hieron.) R.M. King & H. Rob. | Colombia | Lorenzo Uribe Uribe | 6694 | MO | Tropicos | 3272258 | yes |
| Ageratina Spach | Ecuador | Jeffrey Hart | 813 | MO | Tropicos | 3272246 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Ecuador | Robert Merrill King | 6656 | MO | Tropicos | 3272249 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Ecuador | J. Jaramillo. X. Jaramillo. L. Lascano | 2406 | MO | Tropicos | 3272228 | no |
| Ageratina popayanensis (Hieron.) R.M. King & H. Rob. | Colombia | Félipe A. Silverstone-Sopkin | 1214 | MO | Tropicos | 3272305 | no |
| Ageratina Spach | Peru | Isidoro Sánchez Vega y Ernesto Madina y Víctor Torrel P. | 2663 | MO | Tropicos | 3272302 | no |
| Ageratina viscosa (Kunth) R.M. King & H. Rob. | Colombia | Geo. H. Pring | 45 | MO | Tropicos | 3272389 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Ecuador | Robert Merrill King | 6712 | MO | Tropicos | 3272350 | no |
| Ageratina exsertovenosa (Klatt) R.M. King & H. Rob. | Ecuador | Robert Merrill King & Robert M. Garvey | 6999 | MO | Tropicos | 3272331 | no |
| Ageratina glechonophylla (Less.) R.M. King & H. Rob. | Peru | R.D. Metcalf | 30694 | MO | Tropicos | 3272416 | no |
| Ageratina neriifolia (B.L. Rob.) R.M. King & H. Rob. | Venezuela, Bolivarian Republic of | Carmen E. Benitez de Rojas. Francisco Rojas, Victor M. Badillo y Thirza Ruiz | 3815 | MO | Tropicos | 3272412 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Ecuador | Ines Padilla | 1104 | MO | Tropicos | 3272411 | no |
| Ageratina glyptophlebia (B.L. Rob.) R.M. King & H. Rob. | Colombia | Helen Schiefer | 336 | MO | Tropicos | 3272487 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Ecuador | J. Jaramillo., V. Winnerskjold | 5490 | MO | Tropicos | 3272550 | no |
| Ageratina cuencana (B.L. Rob.) R.M. King & H. Rob. | Ecuador | J. Jaramillo | 9733 | MO | Tropicos | 3272526 | no |
| Ageratina fastigiata (Kunth) R.M. King & H. Rob. | Peru | Bassett Maguire & Celia K. Maguire | 60018 | MO | Tropicos | 3272640 | yes |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Ecuador | Robert Merrill King & Robert M. Garvey | 6890 | MO | Tropicos | 3272616 | no |
| Ageratina popayanensis (Hieron.) R.M. King & H. Rob. | Colombia | Felipe A. Silverstone-Sopkin con N. Paz, A. Duque, H. Bayona | 1708 | MO | Tropicos | 3272699 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Ecuador | J. Jaramillo, V. Zak, R. Valencia | 8898 | MO | Tropicos | 3272680 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Ecuador | J. Jaramillo., W. Jaramillo | 1177 | MO | Tropicos | 3272681 | no |
| Ageratina exsertovenosa (Klatt) R.M. King & H. Rob. | Ecuador | Robert Merrill King | 6638 | MO | Tropicos | 3272659 | no |
| Ageratina neriifolia (B.L. Rob.) R.M. King & H. Rob. | Venezuela, Bolivarian Republic of | J. Luteyn, S. Mori, N. Holmgren & J. Steyermark | 8335 | MO | Tropicos | 3272756 | no |
| Ageratina glechonophylla (Less.) R.M. King & H. Rob. | Chile | L. R. Landrum | 4457 | MO | Tropicos | 3272755 | no |
| Ageratina exsertovenosa (Klatt) R.M. King & H. Rob. | Peru | M. Dillon, U. Molau, & P. Matekaitis | 2839 | MO | Tropicos | 3272718 | no |
| Ageratina wurdackii R.M. King & H. Rob. | Peru | Jef D. Boeke | 2008 | MO | Tropicos | 3272830 | no |
| Ageratina glyptophlebia (B.L. Rob.) R.M. King & H. Rob. | Colombia | Francis W. Pennell | 4283 | MO | Tropicos | 3272812 | no |
| Ageratina glechonophylla (Less.) R.M. King & H. Rob. | Chile | Otte Zöllner | 8236 | MO | Tropicos | 3272890 | no |
| Ageratina tinifolia (Kunth) R.M. King & H. Rob. | Colombia | James L. Luteyn, Kent P. Dumont, Maria Lebrón-Luteyn | 4714 | MO | Tropicos | 3272862 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Ecuador | Robert Merrill King & Robert M. Garvey | 6964 | MO | Tropicos | 3272846 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Ecuador | J. Jaramillo., M. Lascano | 1328 | MO | Tropicos | 3272845 | no |
| Ageratina vallincola (DC.) R.M. King & H. Rob. | Peru | J. Soukup | 1878 | MO | Tropicos | 3272926 | no |
| Ageratina lopezmirandae R.M. King & H. Rob. | Peru | A. Lopez, M et A Sagastegui A | 8047 | MO | Tropicos | 3272925 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Peru | David Keil with Charles Burandt & Lizbeth Burandt | 19872 | MO | Tropicos | 3270946 | no |
| Ageratina azangaroensis (Sch. Bip. ex Wedd.) R.M. King & H. Rob. | Bolivia, Plurinational State of | Robert Merrill ing & Luther Earl Bishop | 7539 | MO | Tropicos | 3270928 | no |
| Ageratina jahnii (B.L. Rob.) R.M. King & H. Rob. | Venezuela, Bolivarian Republic of | Carmen Benitez de Rojas, W. G. D'Arcy y Francisco Rojas | 4853 | MO | Tropicos | 3270937 | no |
| Ageratina vacciniifolia (Benth.) R.M. King & H. Rob. | Colombia | J. Dwyer & Idrobo | 8150 | MO | Tropicos | 3271039 | no |
| Ageratina paramensis (Aristeg.) R.M. King & H. Rob. | Venezuela, Bolivarian Republic of | S. S. Tillett & K. W. Honig | 738400 | MO | Tropicos | 3270992 | no |
| Ageratina azangaroensis (Sch. Bip. ex Wedd.) R.M. King & H. Rob. | Bolivia, Plurinational State of | Robert Merrill King & Luther Earl Bishop | 7675 | MO | Tropicos | 3271073 | no |
| Ageratina neriifolia (B.L. Rob.) R.M. King & H. Rob. | Venezuela, Bolivarian Republic of | Julian A. Steyemark, Gerrit Davidse & Ronald Liesner | 127940 | MO | Tropicos | 3271075 | no |
| Ageratina choricephaloides (B.L. Rob.) R.M. King & H. Rob. | Peru | A. López; A. Sagástegui y A. Collantes | 4347 | MO | Tropicos | 3271055 | yes |
| Ageratina proba (N.E. Br.) R.M. King & H. Rob. | Peru | B. Peyton, S. Tilney Peyton | 1054 | MO | Tropicos | 3271159 | no |
| Ageratina Spach | Ecuador | Jorge Ramos, J. Contreras, L. Ramos, A. Tigse & R. Tigse | 6686 | MO | Tropicos | 3271134 | no |
| Ageratina dendroides (Spreng.) R.M. King & H. Rob. | Ecuador | Robert Merrill King & frank Almeda | 7911 | MO | Tropicos | 3271227 | no |
| Ageratina azangaroensis (Sch. Bip. ex Wedd.) R.M. King & H. Rob. | Ecuador | H.J.F. Schimpff | 886 | MO | Tropicos | 3271211 | no |
| Ageratina azangaroensis (Sch. Bip. ex Wedd.) R.M. King & H. Rob. | Ecuador | Robert Merrill King | 6532 | MO | Tropicos | 3271185 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Peru | David Keil with Charles Burandt & Lizbeth Burandt | 19892 | MO | Tropicos | 3271184 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Ecuador | Benkt Sparre | 13435 | MO | Tropicos | 3271283 | no |
| Ageratina glyptophlebia (B.L. Rob.) R.M. King & H. Rob. | Colombia | F. W. Pennell | 2938 | MO | Tropicos | 3271285 | no |
| Ageratina Spach | Ecuador | W. H. Camp | E-3148 | MO | Tropicos | 3271358 | yes |
| Ageratina proba (N.E. Br.) R.M. King & H. Rob. | Peru | M. Dillon, U. Molau, & P. Matekaitis | 2814 | MO | Tropicos | 3271324 | no |
| Ageratina Spach | Bolivia, Plurinational State of | J. Terán, Alcázar-Johansen M. & Zurita E. | 514 | MO | Tropicos | 3271313 | no |
| Ageratina azangaroensis (Sch. Bip. ex Wedd.) R.M. King & H. Rob. | Ecuador | Robert Merrill King & Peter Møller Jørgensen | 10155 | MO | Tropicos | 3271422 | no |
| Ageratina dendroides (Spreng.) R.M. King & H. Rob. | Ecuador | Robert Merrill King & Frank Almeda | 7825 | MO | Tropicos | 3271399 | no |
| Ageratina neriifolia (B.L. Rob.) R.M. King & H. Rob. | Venezuela, Bolivarian Republic of | James L. Luteyn , Maria Lebron-Luteyn , L . Ruiz-Teran & J. A. Dugarte | 5342 | MO | Tropicos | 3271400 | no |
| Ageratina azangaroensis (Sch. Bip. ex Wedd.) R.M. King & H. Rob. | Ecuador | Jack Humbles | 6258 | MO | Tropicos | 3271379 | no |
| Ageratina exsertovenosa (Klatt) R.M. King & H. Rob. | Ecuador | Robert Merrill King | 6709 | MO | Tropicos | 3271471 | no |
| Ageratina azangaroensis (Sch. Bip. ex Wedd.) R.M. King & H. Rob. | Bolivia, Plurinational State of | M. Mercado | 860 | MO | Tropicos | 3271470 | no |
| Ageratina azangaroensis (Sch. Bip. ex Wedd.) R.M. King & H. Rob. | Ecuador | Robert Merrill King, Paul M. Peterson, Emmet J. Judziewicz | 10069 | MO | Tropicos | 3271444 | no |
| Ageratina neriifolia (B.L. Rob.) R.M. King & H. Rob. | Venezuela, Bolivarian Republic of | H. Pittier | 13163 | MO | Tropicos | 3271515 | no |
| Ageratina vallincola (DC.) R.M. King & H. Rob. | Peru | Ramón Ferreyra | 13282 | MO | Tropicos | 3271517 | no |
| Ageratina azangaroensis (Sch. Bip. ex Wedd.) R.M. King & H. Rob. | Bolivia, Plurinational State of | E. Fernández, A. Barrancos, G. Flores, J. Altamirano, H. Villca | 3641 | MO | Tropicos | 3271620 | no |
| Ageratina azangaroensis (Sch. Bip. ex Wedd.) R.M. King & H. Rob. | Argentina | H.A. fabris et F.O. Zuloaga | 7800 | MO | Tropicos | 3271594 | no |
| Ageratina azangaroensis (Sch. Bip. ex Wedd.) R.M. King & H. Rob. | Bolivia, Plurinational State of | W.G. D'Arcy & Gastón Bejarano | 13806 | MO | Tropicos | 3271668 | no |
| Ageratina proba (N.E. Br.) R.M. King & H. Rob. | Peru | R. Ferreyra | 13284 | MO | Tropicos | 3271644 | no |
| Ageratina azangaroensis (Sch. Bip. ex Wedd.) R.M. King & H. Rob. | Peru | J. Mostacero L., E. Alvitez I., R. Mejia C., F. Peláez P. | 0908 | MO | Tropicos | 3271690 | no |
| Ageratina azangaroensis (Sch. Bip. ex Wedd.) R.M. King & H. Rob. | Bolivia, Plurinational State of | José Steinbach | 9792 | MO | Tropicos | 3271786 | no |
| Ageratina Spach | Peru | Ramon Ferreyra | 7468 | MO | Tropicos | 3271771 | no |
| Ageratina exsertovenosa (Klatt) R.M. King & H. Rob. | Ecuador | Robert Merrill King | 6632 | MO | Tropicos | 3271868 | no |
| Ageratina viscosa (Kunth) R.M. King & H. Rob. | Colombia | Bro. Ariste-Joseph | 154A | MO | Tropicos | 3271874 | no |
| Ageratina pentlandiana (DC.) R.M. King & H. Rob. | Peru | R. D. Metcalf | 30681 | MO | Tropicos | 3271837 | no |
| Ageratina azangaroensis (Sch. Bip. ex Wedd.) R.M. King & H. Rob. | Bolivia, Plurinational State of | Robert Merrill King & J.C. Solomon | 9646 | MO | Tropicos | 3271827 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Ecuador | Robert Merrill King | 6611 | MO | Tropicos | 3271828 | no |
| Ageratina viscosa (Kunth) R.M. King & H. Rob. | Colombia | Bro. Ariste-Joseph | 153A | MO | Tropicos | 3271935 | no |
| Ageratina glechonophylla (Less.) R.M. King & H. Rob. | Chile | L.R. Landrum with S.S. Landrum | 7884 | MO | Tropicos | 3271930 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Ecuador | Sara Mariá Paz | 102 | MO | Tropicos | 3271999 | no |
| Ageratina azangaroensis (Sch. Bip. ex Wedd.) R.M. King & H. Rob. | Peru | M. Dillon, J. Aronson, A. Herra, & P. Berry | 1261 | MO | Tropicos | 3272000 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Venezuela, Bolivarian Republic of | Robert Merrill King & Frank Almeda & Marjorie B, Knowles | 10445 | MO | Tropicos | 3271983 | no |
| Ageratina tinifolia (Kunth) R.M. King & H. Rob. | Colombia | F. Javier Roldán, Jorge Brand | 21 | MO | Tropicos | 3273031 | no |
| Ageratina Spach | Ecuador | G. Harling & L. Anderson | 13795 | MO | Tropicos | 3272992 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Ecuador | Jack Humbles | 6258 | MO | Tropicos | 3272971 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Ecuador | Robert Merrill King | 6729 | MO | Tropicos | 3273053 | no |
| Ageratina glechonophylla (Less.) R.M. King & H. Rob. | Chile | Dr. E. Werdermann | 899 | MO | Tropicos | 3273059 | no |
| Ageratina lopezmirandae R.M. King & H. Rob. | Peru | A. Lopez, M. et A. Sagastegui A | 8066 | MO | Tropicos | 3273158 | no |
| Ageratina glechonophylla (Less.) R.M. King & H. Rob. | Chile | Dr. E. Werdermann | 14 | MO | Tropicos | 3273125 | no |
| Ageratina exsertovenosa (Klatt) R.M. King & H. Rob. | Peru | M. O. Dillon & D. Skillman | 4149 | MO | Tropicos | 3273216 | no |
| Ageratina glechonophylla (Less.) R.M. King & H. Rob. | Chile | E. Pöppig | 105 | MO | Tropicos | 3273223 | yes |
| Ageratina Spach | Colombia | Bro. Ariste-Joseph | 150A | MO | Tropicos | 3273179 | yes |
| Ageratina neriifolia (B.L. Rob.) R.M. King & H. Rob. | Venezuela, Bolivarian Republic of | Robert Merril King & Paul M. Peterson | 10280 | MO | Tropicos | 3273194 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Ecuador | Robert Merrill King | 6674 | MO | Tropicos | 3273236 | no |
| Ageratina neriifolia (B.L. Rob.) R.M. King & H. Rob. | Venezuela, Bolivarian Republic of | Robert Merrill King, Frank Almeda & Marjorie B. Knowles | 10520 | MO | Tropicos | 3273302 | no |
| Ageratina popayanensis (Hieron.) R.M. King & H. Rob. | Colombia | Alexander E. Lawrance | 148 | MO | Tropicos | 3273412 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Ecuador | Robert Merrill King | 6635 | MO | Tropicos | 3273388 | no |
| Ageratina glechonophylla (Less.) R.M. King & H. Rob. | Chile | O. Boelcke | 6576 | MO | Tropicos | 3273362 | no |
| Ageratina exsertovenosa (Klatt) R.M. King & H. Rob. | Ecuador | G. Harling & B. Stahl | 26586 | MO | Tropicos | 3273426 | no |
| Ageratina exsertovenosa (Klatt) R.M. King & H. Rob. | Ecuador | Robert Merrill King | 6640 | MO | Tropicos | 3273531 | no |
| Ageratina Spach | Colombia | Linden | 22 | MO | Tropicos | 3273515 | no |
| Ageratina longipetiolata (Sch. Bip. ex Rusby) R.M. King & H. Rob. | Ecuador | Robert Merrill King, & Robert M. Garvey | 6905 | MO | Tropicos | 3273513 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Colombia | Linden | 22 | MO | Tropicos | 3273494 | no |
| Ageratina glechonophylla (Less.) R.M. King & H. Rob. | Peru | C. Vargas | 3498 | MO | Tropicos | 3273600 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Ecuador | Robert Merrill King | 6521 | MO | Tropicos | 3273606 | no |
| Ageratina azangaroensis (Sch. Bip. ex Wedd.) R.M. King & H. Rob. | Peru | Robert Merrill King & Joseph L. Collins | 9037 | MO | Tropicos | 3273573 | no |
| Ageratina ibaguensis (Sch. Bip. ex Hieron.) R.M. King & H. Rob. | Colombia | E. Forero, A. Gentry. A, Sugden & D, Daly | 3653 | MO | Tropicos | 3273734 | no |
| Ageratina dendroides (Spreng.) R.M. King & H. Rob. | Ecuador | W. H. Camp | E-4263 | MO | Tropicos | 3273733 | no |
| Ageratina glechonophylla (Less.) R.M. King & H. Rob. | Chile | Mr. Archibald Menzies | s.n. | MO | Tropicos | 3273696 | yes |
| Ageratina neriifolia (B.L. Rob.) R.M. King & H. Rob. | Venezuela, Bolivarian Republic of | Robert Merrill King, Frank Almeda & Marjorie B. Knowles | 10526 | MO | Tropicos | 3273692 | no |
| Ageratina gracilis (Kunth) R.M. King & H. Rob. | Colombia | Joseph H. Kirkbride, Jr., & J. Idrobo | 349 | MO | Tropicos | 3273691 | no |
| Ageratina Spach | Ecuador | J. Jaramillo | 10408 | MO | Tropicos | 3273689 | no |
| Ageratina popayanensis (Hieron.) R.M. King & H. Rob. | Colombia | William Johnson y Fred A. Barkley | 18C761 | MO | Tropicos | 3273798 | no |
| Ageratina gracilis (Kunth) R.M. King & H. Rob. | Colombia | J. Dwyer & Idrobo | 8145 | MO | Tropicos | 3273762 | no |
| Ageratina azangaroensis (Sch. Bip. ex Wedd.) R.M. King & H. Rob. | Peru | Robert Merrill King & Joseph L. Collins | 9071 | MO | Tropicos | 3273752 | no |
| Ageratina azangaroensis (Sch. Bip. ex Wedd.) R.M. King & H. Rob. | Ecuador | Robert Merrill King with Alvaro E. Guevara & Victor E. Krantz | 6693 | MO | Tropicos | 3273856 | no |
| Ageratina ibaguensis (Sch. Bip. ex Hieron.) R.M. King & H. Rob. | Colombia | E. Forero, A. Gentry, A. Sugden & D. Daly | 3613 | MO | Tropicos | 3273857 | no |
| Ageratina exsertovenosa (Klatt) R.M. King & H. Rob. | Ecuador | Robert Merrill King & Robert M. Garvey | 6914 | MO | Tropicos | 3273835 | no |
| Ageratina glechonophylla (Less.) R.M. King & H. Rob. | Chile | Dr. C. Grandjot | s.n. | MO | Tropicos | 3273824 | no |
| Ageratina Spach | Ecuador | Ines Padilla | 1011 | MO | Tropicos | 3273916 | no |
| Ageratina cutervensis (Hieron.) R.M. King & H. Rob. | Ecuador | Robert Merrill King | 6728 | MO | Tropicos | 3273900 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Venezuela, Bolivarian Republic of | Robert Merrill King, Frank Almeda & Marjorie | 10531 | MO | Tropicos | 3273882 | no |
| Ageratina glechonophylla (Less.) R.M. King & H. Rob. | Chile | James West | 3946 | MO | Tropicos | 3273992 | no |
| Ageratina articulata (Sch. Bip. ex Hieron.) R.M. King & H. Rob. | Colombia | R. Jaramillo Mejía, Bárbara Moreno et al. | 18 | MO | Tropicos | 3270699 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Ecuador | Benkt Sparre | 13501 | MO | Tropicos | 3270698 | no |
| Ageratina articulata (Sch. Bip. ex Hieron.) R.M. King & H. Rob. | Colombia | Santiago Díaz P., A.M. Cleef O., rnagel S. Salamanca | 2746 | MO | Tropicos | 3270768 | no |
| Ageratina cuencana (B.L. Rob.) R.M. King & H. Rob. | Peru | Robert Merrilll King & Luther Earl Bishop | 9252 | MO | Tropicos | 3270742 | yes |
| Ageratina azangaroensis (Sch. Bip. ex Wedd.) R.M. King & H. Rob. | Bolivia, Plurinational State of | Robert Merrill King & Luther Earl Bishop | 7544 | MO | Tropicos | 3270741 | no |
| Ageratina popayanensis (Hieron.) R.M. King & H. Rob. | Colombia | Philip A. Silverstone-Sopkin con N. Paz, R.T. González, J.E. Ramos, L.H. Ramos, A. Henao | 4579 | MO | Tropicos | 3270856 | no |
| Ageratina gynoxoides (Wedd.) R.M. King & H. Rob. | Colombia | Antoine M. Cleef | 7127 | MO | Tropicos | 3270838 | no |
| Ageratina azangaroensis (Sch. Bip. ex Wedd.) R.M. King & H. Rob. | Ecuador | Robert Merrill King | 6596 | MO | Tropicos | 3270836 | no |
| Ageratina dombeyana (DC.) R.M. King & H. Rob. | Peru | A. López et A. Sagástegui A | 8111 | MO | Tropicos | 3270815 | no |
| Ageratina azangaroensis (Sch. Bip. ex Wedd.) R.M. King & H. Rob. | Ecuador | Robert Merrill King | 6519 | MO | Tropicos | 3270814 | no |
| Ageratina choricephaloides (B.L. Rob.) R.M. King & H. Rob. | Peru | Robert Merrill King et Luther Earl Bishop | 9186 | MO | Tropicos | 3270794 | no |
| Ageratina glyptophlebia (B.L. Rob.) R.M. King & H. Rob. | Colombia | R. Jaramillo Mejía, Bárbara Moreno et al. | 9 | MO | Tropicos | 3270898 | no |
| Ageratina ixiocladon (Benth.) R.M. King & H. Rob. | Panama | Edwin L. Tyson & H. Loftin | 6116b | MO | Tropicos | 3268586 | no |
| Ageratina Spach | Bolivia, Plurinational State of | E. Fernandez, A. Barrancos, G. Flores, J. Altamirano, H. Villca | 3533 | MO | Tropicos | 3369098 | no |
| Ageratina kupperi (Suess.) R.M. King & H. Rob. | Panama | Sandra Knapp & Alex K. Monro | 9870 | MO | Tropicos | 3250364 | yes |
| Ageratina Spach | Mexico | A. Mendez Ton & Mtz de Lopez | 9465A | MO | Tropicos | 3250500 | no |
| Ageratina glauca (Sch. Bip. ex Klatt) R.M. King & H. Rob. | Guatemala | Julian Steyermark | 48470 | MO | Tropicos | 3250702 | no |
| Ageratina muelleri (Sch. Bip. ex Klatt) R.M. King & H. Rob. | Mexico | Breedlove | 40726 | MO | Tropicos | 3250992 | no |
| Ageratina pringlei (B.L. Rob. & Greenm.) R.M. King & H. Rob. | Mexico | J. A. Soule, R. Day & E. Harris | 2132 | MO | Tropicos | 3251336 | no |
| Ageratina tambillensis (Hieron.) R.M. King & H. Rob. | Peru | Jef D. Boeke | 1837 | MO | Tropicos | 3285088 | no |
| Ageratina pentlandiana (DC.) R.M. King & H. Rob. | Peru | C. Vargas C. | 199 | MO | Tropicos | 3285052 | no |
| Ageratina rhypodes (B.L. Rob.) R.M. King & H. Rob. | Ecuador | J. Hudson | 1156 | MO | Tropicos | 3285180 | no |
| Ageratina stictophylla (B.L. Rob.) R.M. King & H. Rob. | Peru | Ramon Ferreyra | 7492 | MO | Tropicos | 3285278 | no |
| Ageratina sternbergiana (DC.) R.M. King & H. Rob. | Bolivia, Plurinational State of | W.G.D'Archy, Gaston Bejarano | 13936 | MO | Tropicos | 3285233 | no |
| Ageratina stictophylla (B.L. Rob.) R.M. King & H. Rob. | Peru | J. Mostacero L., E. Alvitez I., S. Leiva G., F. Mejia C., F. Pelaez P. | 1353 | MO | Tropicos | 3285425 | no |
| Ageratina sternbergiana (DC.) R.M. King & H. Rob. | Peru | M.Dillon and B.L. Turner | 1404 | MO | Tropicos | 3285586 | no |
| Ageratina sodiroi (Hieron.) R.M. King & H. Rob. | Ecuador | Jack Humbles | 6258 | MO | Tropicos | 3285783 | no |
| Ageratina bellidifolia (Benth.) R.M. King & H. Rob. | Honduras | Paul House | 1202 | MO | Tropicos | 3285956 | no |
| Ageratina Spach | Peru | L. Valenzuela, J. Farfán, E. Suclli, I. Huamantupa, R. Ayerbe | 6011 | MO | Tropicos | 3339824 | no |
| Ageratina Spach | Costa Rica | Sidney McDaniel | 6721 | MO | Tropicos | 3445869 | no |
| Ageratina altissima var. altissima | United States | Castaner, David & Thomas A. Priesendorf | 8813 | MO | Tropicos | 3443271 | no |
| Ageratina fleischmannioides H. Rob. | Colombia | R. Callejas | 6248 | MO | Tropicos | 3258164 | no |
| Ageratina kupperi (Suess.) R.M. King & H. Rob. | Costa Rica | Alex Rodriguez, L.D. Vargas, V.H. Ramírez & Evelio Alfaro | 2960 | MO | Tropicos | 3264659 | no |
| Ageratina ligustrina (DC.) R.M. King & H. Rob. | Costa Rica | M. H. Grayum, J. F. Morales, Barry Hammel, Lady Muñoz & Isabel Pérez | 12472 | MO | Tropicos | 3331559 | no |
| Ageratina Spach | Peru | J. Farfán, Y. Vizcardo, L. Cardenas | 575 | MO | Tropicos | 3337947 | no |
| Ageratina Spach | Peru | J. Farfán, Y. Vizcardo, L. Cardenas | 569 | MO | Tropicos | 3337943 | no |
| Ageratina Spach | Peru | J. Farfán, Y. Vizcardo, C. Serrano | 589 | MO | Tropicos | 3337963 | no |
| Ageratina crassiramea (B.L. Rob.) R.M. King & H. Rob. | Nicaragua | W.D. Stevens, I. Coronado G. & O.M. Montiel J. | 27028 | MO | Tropicos | 3437532 | yes |
| Ageratina altissima var. altissima | United States | Castaner, David | 11080 | MO | Tropicos | 3441753 | no |
| Ageratina glauca (Sch. Bip. ex Klatt) R.M. King & H. Rob. | Mexico | | 79 | MO | Tropicos | 100675135 | no |
| Ageratina guatemalensis R.M. King & H. Rob. | Guatemala | | 67608 | MO | Tropicos | 100675136 | no |
| Ageratina chiriquensis (B.L. Rob.) R.M. King & H. Rob. | Panama | | 5360 | MO | Tropicos | 100675133 | no |
| Ageratina chazaroana B.L. Turner | Mexico | | 3993-A | MO | Tropicos | 100675132 | no |
| Ageratina kupperi (Suess.) R.M. King & H. Rob. | Costa Rica | | 1155 | MO | Tropicos | 100675143 | no |
| Ageratina kupperi (Suess.) R.M. King & H. Rob. | Costa Rica | | 1300 | MO | Tropicos | 100675144 | no |
| Ageratina ixiocladon (Benth.) R.M. King & H. Rob. | Costa Rica | | 63 / 9597 | MO | Tropicos | 100675141 | no |
| Ageratina kupperi (Suess.) R.M. King & H. Rob. | Costa Rica | | 1149 | MO | Tropicos | 100675142 | no |
| Ageratina hirtella R.M. King & H. Rob. | Costa Rica | | 6755 | MO | Tropicos | 100675139 | no |
| Ageratina huehueteca (Standl. & Steyerm.) R.M. King & H. Rob. | Guatemala | | 65798 | MO | Tropicos | 100675140 | no |
| Ageratina helenae R.M. King & H. Rob. | Guatemala | | 23101 | MO | Tropicos | 100675137 | no |
| Ageratina mairetiana (DC.) R.M. King & H. Rob. | Mexico | | s.n. | MO | Tropicos | 100675149 | no |
| Ageratina muelleri (Sch. Bip. ex Klatt) R.M. King & H. Rob. | Mexico | | 67 | MO | Tropicos | 100675158 | no |
| Ageratina molinae R.M. King & H. Rob. | Honduras | | 13767 | MO | Tropicos | 100675156 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Ecuador | | s.n. | MO | Tropicos | 100675168 | no |
| Ageratina petiolaris (Moc. ex DC.) R.M. King & H. Rob. | Mexico | | s.n. | MO | Tropicos | 100675166 | no |
| Ageratina pazcuarensis (Kunth) R.M. King & H. Rob. | Mexico | | s.n. | MO | Tropicos | 100675163 | no |
| Ageratina ovilla (Standl. & Steyerm.) R.M. King & H. Rob. | Guatemala | | 65862 | MO | Tropicos | 100675161 | no |
| Ageratina saxorum (Standl. & Steyerm.) R.M. King & H. Rob. | Guatemala | | 36075 | MO | Tropicos | 100675171 | no |
| Ageratina pichinchensis bustamenta (DC.) R.M. King & H. Rob. | Mexico | | s.n. | MO | Tropicos | 100675169 | no |
| Ageratina prunellifolia (Kunth) R.M. King & H. Rob. | Mexico | | s.n. | MO | Tropicos | 100675170 | no |
| Ageratina adenophora (Spreng.) R.M. King & H. Rob. | Mexico | | s.n. | MO | Tropicos | 100675088 | no |
| Ageratina atrocordata (B.L. Rob.) R.M. King & H. Rob. | Mexico | | 6796 | MO | Tropicos | 100675096 | no |
| Ageratina anisochroma (Klatt) R.M. King & H. Rob. | Costa Rica | | 1940 | MO | Tropicos | 100675092 | no |
| Ageratina bellidifolia (Benth.) R.M. King & H. Rob. | Mexico | | 330 | MO | Tropicos | 100675101 | no |
| Ageratina capillipes R.M. King & H. Rob. | Guatemala | | 16080 | MO | Tropicos | 100675118 | no |
| Ageratina caeciliae (B.L. Rob.) R.M. King & H. Rob. | Guatemala | | 2361 | MO | Tropicos | 100675116 | no |
| Ageratina cartagoensis R.M. King & H. Rob. | Costa Rica | | 28191 | MO | Tropicos | 100675128 | no |
| Ageratina carmonis (Standl. & Steyerm.) R.M. King & H. Rob. | Guatemala | | 63743 | MO | Tropicos | 100675122 | no |
| Ageratina standleyi R.M. King & H. Rob. | Costa Rica | | 38395 | MO | Tropicos | 100675207 | no |
| Ageratina subcordata (Benth.) R.M. King & H. Rob. | Costa Rica | | 9663 | MO | Tropicos | 100675208 | no |
| Ageratina schaffneri (Sch. Bip. ex B.L. Rob.) R.M. King & H. Rob. | Mexico | | 28 | MO | Tropicos | 100675202 | no |
| Ageratina subinclusa (Klatt) R.M. King & H. Rob. | Mexico | | 91 | MO | Tropicos | 100675216 | no |
| Ageratina subglabra R.M. King & H. Rob. | Costa Rica | | 42888 | MO | Tropicos | 100675212 | no |
| Ageratina subcoriacea R.M. King & H. Rob. | Mexico | | 9741 | MO | Tropicos | 100675210 | no |
| Ageratina zunilana (Standl. & Steyerm.) R.M. King & H. Rob. | Guatemala | | 34744 | MO | Tropicos | 100675224 | no |
| Ageratina valerioi R.M. King & H. Rob. | Costa Rica | | 49493 | MO | Tropicos | 100675222 | no |
| Ageratina Spach | Peru | | 22 | MO | Tropicos | 100675532 | no |
| Ageratina Spach | Bolivia, Plurinational State of | | MZ2266 | MO | Tropicos | 100675794 | no |
| Ageratina fastigiata (Kunth) R.M. King & H. Rob. | Peru | | 96 | MO | Tropicos | 100675768 | no |
| Ageratina pazcuarensis (Kunth) R.M. King & H. Rob. | Mexico | | 2032 | MO | Tropicos | 100671639 | no |
| Ageratina glabrata (Kunth) R.M. King & H. Rob. | Mexico | | 2175 | MO | Tropicos | 100671859 | no |
| Ageratina popayanensis (Hieron.) R.M. King & H. Rob. | Colombia | | 6163 | MO | Tropicos | 100665876 | no |
| Ageratina Spach | Peru | | 18387 | MO | Tropicos | 100665841 | no |
| Ageratina altissima var. altissima | United States | Courtney Seaman | 63 | MO | Tropicos | 100666051 | no |
| Ageratina areolaris (DC.) Gage ex B.L. Turner | Mexico | | 2055 | MO | Tropicos | 100672460 | no |
| Ageratina mairetiana (DC.) R.M. King & H. Rob. | Mexico | | 1529 | MO | Tropicos | 100672777 | no |
| Ageratina Spach | Peru | | 10644 | MO | Tropicos | 100673665 | no |
| Ageratina popayanensis (Hieron.) R.M. King & H. Rob. | Colombia | | 363 | MO | Tropicos | 100766633 | no |
| Ageratina altissima var. altissima | United States | | 14502 | MO | Tropicos | 100766903 | no |
| Ageratina ligustrina (DC.) R.M. King & H. Rob. | Costa Rica | | 2511 | MO | Tropicos | 100916929 | no |
| Ageratina adenophora (Spreng.) R.M. King & H. Rob. | United States | J. Richard Abbott, Barbara Carlsward | 12931 | MO | Tropicos | 100756305 | no |
| Ageratina Spach | Unknown or unspecified country | | 20 | MO | Tropicos | 100914282 | no |
| Ageratina havanensis (Kunth) R.M. King & H. Rob. | Mexico | J. Richard Abbott | 19811 | MO | Tropicos | 100755153 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Mexico | J. Richard Abbott, Barbara Carlsward | 19672 | MO | Tropicos | 100755066 | no |
| Ageratina ligustrina (DC.) R.M. King & H. Rob. | Mexico | J. Richard Abbott | 19851 | MO | Tropicos | 100755193 | no |
| Ageratina Spach | Costa Rica | | 1518 | MO | Tropicos | 100746246 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 4746 | MO | Tropicos | 100747001 | no |
| Ageratina rivalis (Greenm.) R.M. King & H. Rob. | Mexico | | 483 | MO | Tropicos | 100742057 | no |
| Ageratina brevipes (DC.) R.M. King & H. Rob. | Mexico | | 78 | MO | Tropicos | 100742027 | no |
| Ageratina altissima var. altissima | United States | Simone Johnson | 34 | MO | Tropicos | 100859656 | no |
| Ageratina altissima var. altissima | United States | Simone Johnson, Erin Skornia, Jamie Hill, Alicia Stuckhoff | 72 | MO | Tropicos | 100859683 | no |
| Ageratina gloeoclada (B.L. Rob.) R.M. King & H. Rob. | Peru | | 156 | MO | Tropicos | 100851676 | no |
| Ageratina Spach | Ecuador | | 104269 | MO | Tropicos | 100579513 | no |
| Ageratina glechonophylla (Less.) R.M. King & H. Rob. | Bolivia, Plurinational State of | | 182 | MO | Tropicos | 100575211 | no |
| Ageratina altissima var. altissima | United States | Dana Hershey | 31 | MO | Tropicos | 100660647 | no |
| Ageratina aromatica (L.) Spach | United States | | 59140 | MO | Tropicos | 100656513 | no |
| Ageratina gloeoclada (B.L. Rob.) R.M. King & H. Rob. | Bolivia, Plurinational State of | | 4663 | MO | Tropicos | 100657680 | no |
| Ageratina glabrata (Kunth) R.M. King & H. Rob. | Mexico | | 97 | MO | Tropicos | 100661776 | no |
| Ageratina mairetiana (DC.) R.M. King & H. Rob. | Mexico | | 123 | MO | Tropicos | 100661790 | no |
| Ageratina glabrata (Kunth) R.M. King & H. Rob. | Mexico | | 105 | MO | Tropicos | 100661787 | no |
| Ageratina collodes (B.L. Rob. & Greenm.) R.M. King & H. Rob. | Mexico | | 4941 | MO | Tropicos | 100664180 | yes |
| Ageratina prunellifolia (Kunth) R.M. King & H. Rob. | Mexico | | 82 | MO | Tropicos | 100661756 | no |
| Ageratina Spach | Peru | | 16786 | MO | Tropicos | 100779614 | no |
| Ageratina ligustrina (DC.) R.M. King & H. Rob. | Nicaragua | | 35536-A | MO | Tropicos | 100774782 | no |
| Ageratina Spach | Colombia | | 6672 | MO | Tropicos | 100782197 | no |
| Ageratina ligustrina (DC.) R.M. King & H. Rob. | Mexico | | 386 | MO | Tropicos | 100778797 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 37018 | MO | Tropicos | 100862550 | no |
| Ageratina pazcuarensis (Kunth) R.M. King & H. Rob. | Mexico | | 13638 | MO | Tropicos | 100824766 | no |
| Ageratina adenophora (Spreng.) R.M. King & H. Rob. | United States | | 13663 | MO | Tropicos | 100824787 | no |
| Ageratina occidentalis (Hook.) R.M. King & H. Rob. | United States | | 836 | MO | Tropicos | 100683209 | no |
| Ageratina bellidifolia (Benth.) R.M. King & H. Rob. | Guatemala | | 23215 | MO | Tropicos | 100680665 | no |
| Ageratina barbensis R.M. King & H. Rob. | Costa Rica | | 4576 | MO | Tropicos | 100680662 | no |
| Ageratina bellidifolia (Benth.) R.M. King & H. Rob. | Mexico | | 31548 | MO | Tropicos | 100680663 | no |
| Ageratina badia (Klatt) R.M. King & H. Rob. | Costa Rica | | 3429 | MO | Tropicos | 100680659 | no |
| Ageratina capillipes R.M. King & H. Rob. | Guatemala | | 36000 | MO | Tropicos | 100680673 | no |
| Ageratina caeciliae (B.L. Rob.) R.M. King & H. Rob. | Guatemala | | 15932 | MO | Tropicos | 100680670 | no |
| Ageratina croatii R.M. King & H. Rob. | Costa Rica | | 6777 | MO | Tropicos | 100680681 | no |
| Ageratina contigua R.M. King & H. Rob. | Costa Rica | | 6735 | MO | Tropicos | 100680678 | no |
| Ageratina costaricensis R.M. King & H. Rob. | Costa Rica | | 35300 | MO | Tropicos | 100680679 | no |
| Ageratina chazaroana B.L. Turner | Mexico | | 12603 | MO | Tropicos | 100680677 | no |
| Ageratina carmonis (Standl. & Steyerm.) R.M. King & H. Rob. | Honduras | | 3358 | MO | Tropicos | 100680675 | no |
| Ageratina helenae R.M. King & H. Rob. | Guatemala | | 26883 | MO | Tropicos | 100680686 | no |
| Ageratina helenae R.M. King & H. Rob. | Mexico | | 758 | MO | Tropicos | 100680685 | no |
| Ageratina guatemalensis R.M. King & H. Rob. | Guatemala | | 67644 | MO | Tropicos | 100680683 | no |
| Ageratina anchistea (Grashoff & Beaman) R.M. King & H. Rob. | Honduras | | 29294 | MO | Tropicos | 100680654 | no |
| Ageratina anchistea (Grashoff & Beaman) R.M. King & H. Rob. | Guatemala | | 25013 | MO | Tropicos | 100680653 | no |
| Ageratina pringlei (B.L. Rob. & Greenm.) R.M. King & H. Rob. | Guatemala | | 168 | MO | Tropicos | 100680793 | no |
| Ageratina rivalis (Greenm.) R.M. King & H. Rob. | Honduras | | 4030 | MO | Tropicos | 100680800 | no |
| Ageratina rivalis (Greenm.) R.M. King & H. Rob. | Mexico | | 9800 | MO | Tropicos | 100680801 | no |
| Ageratina rivalis (Greenm.) R.M. King & H. Rob. | Guatemala | | 333 | MO | Tropicos | 100680799 | no |
| Ageratina reticulifera (Standl. & L.O. Williams) R.M. King & H. Rob. | Costa Rica | | 281 | MO | Tropicos | 100680796 | no |
| Ageratina rivalis (Greenm.) R.M. King & H. Rob. | Mexico | | 719 | MO | Tropicos | 100680797 | no |
| Ageratina subinclusa (Klatt) R.M. King & H. Rob. | Mexico | | 14078 | MO | Tropicos | 100680808 | no |
| Ageratina subinclusa (Klatt) R.M. King & H. Rob. | Guatemala | | 41471 | MO | Tropicos | 100680809 | no |
| Ageratina subcordata (Benth.) R.M. King & H. Rob. | Costa Rica | | 13735 | MO | Tropicos | 100680806 | no |
| Ageratina subglabra R.M. King & H. Rob. | Costa Rica | | 42233 | MO | Tropicos | 100680807 | no |
| Ageratina saxorum (Standl. & Steyerm.) R.M. King & H. Rob. | Guatemala | | 81808 | MO | Tropicos | 100680802 | no |
| Ageratina schaffneri (Sch. Bip. ex B.L. Rob.) R.M. King & H. Rob. | Costa Rica | | 14081 | MO | Tropicos | 100680803 | no |
| Ageratina valerioi R.M. King & H. Rob. | Guatemala | | 84307 | MO | Tropicos | 100680813 | no |
| Ageratina tomentella (Schrad.) R.M. King & H. Rob. | Guatemala | | 22505 | MO | Tropicos | 100680810 | no |
| Ageratina tomentella (Schrad.) R.M. King & H. Rob. | Mexico | | 47603 | MO | Tropicos | 100680811 | no |
| Ageratina vernalis (Vatke & Kurtz) R.M. King & H. Rob. | Guatemala | | 293 | MO | Tropicos | 100680820 | no |
| Ageratina vernalis (Vatke & Kurtz) R.M. King & H. Rob. | Mexico | | 795 | MO | Tropicos | 100680819 | no |
| Ageratina ixiocladon (Benth.) R.M. King & H. Rob. | Costa Rica | | 14077 | MO | Tropicos | 100680744 | no |
| Ageratina intibucensis R.M. King & H. Rob. | Honduras | | 25310 | MO | Tropicos | 100680742 | no |
| Ageratina intibucensis R.M. King & H. Rob. | El Salvador | | 16376 | MO | Tropicos | 100680743 | no |
| Ageratina huehueteca (Standl. & Steyerm.) R.M. King & H. Rob. | Guatemala | | 7304 | MO | Tropicos | 100680741 | no |
| Ageratina ligustrina (DC.) R.M. King & H. Rob. | Costa Rica | | 43017 | MO | Tropicos | 100680752 | no |
| Ageratina ligustrina (DC.) R.M. King & H. Rob. | Guatemala | | 40052 | MO | Tropicos | 100680750 | no |
| Ageratina ligustrina (DC.) R.M. King & H. Rob. | Honduras | | 18695 | MO | Tropicos | 100680751 | no |
| Ageratina ligustrina (DC.) R.M. King & H. Rob. | Mexico | | 9243 | MO | Tropicos | 100680747 | no |
| Ageratina molinae R.M. King & H. Rob. | El Salvador | | 16880 | MO | Tropicos | 100680758 | no |
| Ageratina molinae R.M. King & H. Rob. | Costa Rica | | 4193 | MO | Tropicos | 100680759 | no |
| Ageratina malacolepis (B.L. Rob.) R.M. King & H. Rob. | Mexico | | 34326 | MO | Tropicos | 100680756 | no |
| Ageratina molinae R.M. King & H. Rob. | Guatemala | | 7436 | MO | Tropicos | 100680757 | no |
| Ageratina mairetiana (DC.) R.M. King & H. Rob. | Mexico | | 10629 | MO | Tropicos | 100680754 | no |
| Ageratina mairetiana (DC.) R.M. King & H. Rob. | Guatemala | | 41504 | MO | Tropicos | 100680755 | no |
| Ageratina pazcuarensis (Kunth) R.M. King & H. Rob. | Guatemala | | 767 | MO | Tropicos | 100680769 | no |
| Ageratina ovilla (Standl. & Steyerm.) R.M. King & H. Rob. | Guatemala | | 334 | MO | Tropicos | 100680767 | no |
| Ageratina muelleri (Sch. Bip. ex Klatt) R.M. King & H. Rob. | Guatemala | | 22552 | MO | Tropicos | 100680764 | no |
| Ageratina muelleri (Sch. Bip. ex Klatt) R.M. King & H. Rob. | Honduras | | 56032 | MO | Tropicos | 100680765 | no |
| Ageratina muelleri (Sch. Bip. ex Klatt) R.M. King & H. Rob. | Mexico | | 13811 | MO | Tropicos | 100680763 | no |
| Ageratina pichinchensis bustamenta (DC.) R.M. King & H. Rob. | Panama | | 1024 | MO | Tropicos | 100680777 | no |
| Ageratina pichinchensis bustamenta (DC.) R.M. King & H. Rob. | Honduras | | 6944 | MO | Tropicos | 100680774 | no |
| Ageratina pichinchensis bustamenta (DC.) R.M. King & H. Rob. | El Salvador | | 20636 | MO | Tropicos | 100680775 | no |
| Ageratina pichinchensis bustamenta (DC.) R.M. King & H. Rob. | Mexico | | 9267 | MO | Tropicos | 100680772 | no |
| Ageratina pichinchensis bustamenta (DC.) R.M. King & H. Rob. | Guatemala | | 262 | MO | Tropicos | 100680773 | no |
| Ageratina petiolaris (Moc. ex DC.) R.M. King & H. Rob. | Mexico | | 9208 | MO | Tropicos | 100680770 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 36393 | MO | Tropicos | 100834084 | no |
| Ageratina modesta (Kunth) R.M. King & H. Rob. | United States | | SR 120 | MO | Tropicos | 100831693 | no |
| Ageratina oppositifolia (A. Gray) B.L. Turner | Mexico | | 359 | MO | Tropicos | 100832138 | yes |
| Ageratina altissima var. altissima | United States | | 41046 | MO | Tropicos | 100635476 | no |
| Ageratina lorentzii (Hieron.) R.M. King & H. Rob. | Argentina | | 397 | MO | Tropicos | 100630402 | no |
| Ageratina ligustrina (DC.) R.M. King & H. Rob. | Mexico | | s.n. | MO | Tropicos | 100630403 | no |
| Ageratina muelleri (Sch. Bip. ex Klatt) R.M. King & H. Rob. | Mexico | | 3630 | MO | Tropicos | 100630400 | no |
| Ageratina mairetiana (DC.) R.M. King & H. Rob. | Mexico | | 3809 | MO | Tropicos | 100630401 | no |
| Ageratina pseudochilca (Benth.) R.M. King & H. Rob. | Ecuador | | 3810 | MO | Tropicos | 100630397 | no |
| Ageratina tenuis (R.E. Fr.) R.M. King & H. Rob. | Argentina | | 30/1775 | MO | Tropicos | 100630396 | no |
| Ageratina aschenborniana (S. Schauer) R.M. King & H. Rob. | Costa Rica | | s.n. | MO | Tropicos | 100630408 | no |
| Ageratina exsertovenosa (Klatt) R.M. King & H. Rob. | Peru | | 2802 | MO | Tropicos | 100630407 | no |
| Ageratina kupperi (Suess.) R.M. King & H. Rob. | Costa Rica | | 297 | MO | Tropicos | 100630404 | no |
| Ageratina azangaroensis (Sch. Bip. ex Wedd.) R.M. King & H. Rob. | Argentina | | 4957a | MO | Tropicos | 100630441 | no |
| Ageratina azangaroensis (Sch. Bip. ex Wedd.) R.M. King & H. Rob. | Argentina | | 4930 | MO | Tropicos | 100630439 | no |
| Ageratina Spach | Bolivia, Plurinational State of | | 6320 | MO | Tropicos | 100715009 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 3779 | MO | Tropicos | 100730345 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 47-64 | MO | Tropicos | 100730341 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 1052 | MO | Tropicos | 100730353 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 2575 | MO | Tropicos | 100730350 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 2041 | MO | Tropicos | 100730348 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 2284 | MO | Tropicos | 100730346 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 832 | MO | Tropicos | 100730358 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 3799 | MO | Tropicos | 100730357 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | s.n. | MO | Tropicos | 100730356 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 586 | MO | Tropicos | 100730354 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 2950 | MO | Tropicos | 100730369 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 2427A | MO | Tropicos | 100730363 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | s.n. | MO | Tropicos | 100730362 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 4019 | MO | Tropicos | 100730374 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 4116 | MO | Tropicos | 100730372 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | s.n. | MO | Tropicos | 100730370 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 1A | MO | Tropicos | 100730385 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | s.n. | MO | Tropicos | 100730384 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | s.n. | MO | Tropicos | 100730383 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | s.n. | MO | Tropicos | 100730382 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | s.n. | MO | Tropicos | 100730379 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 442 | MO | Tropicos | 100730378 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 3395 | MO | Tropicos | 100730393 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | s.n. | MO | Tropicos | 100730390 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 1042 | MO | Tropicos | 100730480 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 1180 | MO | Tropicos | 100730479 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 1551 | MO | Tropicos | 100730483 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 506 | MO | Tropicos | 100730401 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 25419 | MO | Tropicos | 100730593 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 309 | MO | Tropicos | 100730592 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 25973 | MO | Tropicos | 100730591 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 1B | MO | Tropicos | 100730590 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 5 | MO | Tropicos | 100730589 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 5E | MO | Tropicos | 100730588 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 120 | MO | Tropicos | 100730587 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 3602 | MO | Tropicos | 100730600 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | s.n. | MO | Tropicos | 100730599 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 12844 | MO | Tropicos | 100730598 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 1 | MO | Tropicos | 100730597 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | W1057 | MO | Tropicos | 100730596 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | s.n. | MO | Tropicos | 100730595 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 2044 | MO | Tropicos | 100730594 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 95-1081 | MO | Tropicos | 100730608 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | s.n. | MO | Tropicos | 100730605 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 95-982 | MO | Tropicos | 100730604 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 26071 | MO | Tropicos | 100730602 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 95-869 | MO | Tropicos | 100730610 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 600 | MO | Tropicos | 100730625 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 95-730 | MO | Tropicos | 100730623 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | s.n. | MO | Tropicos | 100730620 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 95-941 | MO | Tropicos | 100730632 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 391 | MO | Tropicos | 100730630 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 259 | MO | Tropicos | 100730627 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 11080 | MO | Tropicos | 100730641 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 8813B | MO | Tropicos | 100730640 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 8982 | MO | Tropicos | 100730639 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 441 | MO | Tropicos | 100730645 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 14672 | MO | Tropicos | 100730644 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 4090 | MO | Tropicos | 100730585 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 4776 | MO | Tropicos | 100730584 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 1963 | MO | Tropicos | 100730583 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 283 | MO | Tropicos | 100730582 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 292 | MO | Tropicos | 100730581 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 3 | MO | Tropicos | 100730656 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 3756 | MO | Tropicos | 100730654 | no |
| Ageratina anisochroma (Klatt) R.M. King & H. Rob. | Panama | | 8632 Al | MO | Tropicos | 100807629 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Nicaragua | | 35939 | MO | Tropicos | 100807876 | no |
| Ageratina crassiramea (B.L. Rob.) R.M. King & H. Rob. | Nicaragua | | 35920 | MO | Tropicos | 100807783 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Nicaragua | | 36070 | MO | Tropicos | 100808219 | no |
| Ageratina altissima var. altissima | United States | Steve R. Turner | 14-189 | MO | Tropicos | 100803533 | no |
| Ageratina popayanensis (Hieron.) R.M. King & H. Rob. | Colombia | | 3174 | MO | Tropicos | 100709485 | no |
| Ageratina Spach | Colombia | | 3163 | MO | Tropicos | 100709487 | no |
| Ageratina tinifolia (Kunth) R.M. King & H. Rob. | Colombia | | 8212 | MO | Tropicos | 100709495 | no |
| Ageratina Spach | Mexico | | 50602 | MO | Tropicos | 100708072 | no |
| Ageratina popayanensis (Hieron.) R.M. King & H. Rob. | Colombia | | 4573 | MO | Tropicos | 100712217 | no |
| Ageratina glyptophlebia (B.L. Rob.) R.M. King & H. Rob. | Colombia | | 4803 | MO | Tropicos | 100712210 | no |
| Ageratina tinifolia (Kunth) R.M. King & H. Rob. | Colombia | | 4798 | MO | Tropicos | 100712221 | no |
| Ageratina Spach | Bolivia, Plurinational State of | | 3206 | MO | Tropicos | 100810756 | no |
| Ageratina Spach | Colombia | | 10688 | MO | Tropicos | 100810983 | no |
| Ageratina Spach | Venezuela, Bolivarian Republic of | | 1201 | MO | Tropicos | 100811008 | no |
| Ageratina Spach | Venezuela, Bolivarian Republic of | | 1405 | MO | Tropicos | 100811013 | no |
| Ageratina popayanensis (Hieron.) R.M. King & H. Rob. | Colombia | | 313 | MO | Tropicos | 100585932 | no |
| Ageratina tinifolia (Kunth) R.M. King & H. Rob. | Colombia | | 12275 | MO | Tropicos | 100586048 | no |
| Ageratina altissima var. altissima | United States | | 41354 | MO | Tropicos | 100642945 | no |
| Ageratina altissima var. altissima | United States | | 2729 | MO | Tropicos | 100734889 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | s.n. | MO | Tropicos | 100731240 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 1086 | MO | Tropicos | 100731239 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 3901 | MO | Tropicos | 100731246 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | s.n. | MO | Tropicos | 100731245 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 3748 | MO | Tropicos | 100731244 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 3206 | MO | Tropicos | 100731243 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | s.n. | MO | Tropicos | 100731242 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 3331 | MO | Tropicos | 100731264 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | s.n. | MO | Tropicos | 100731261 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 13094 | MO | Tropicos | 100731259 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 1174 | MO | Tropicos | 100731272 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 1167 | MO | Tropicos | 100731268 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | s.n. | MO | Tropicos | 100731267 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | s.n. | MO | Tropicos | 100731277 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | s.n. | MO | Tropicos | 100731275 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 3593 | MO | Tropicos | 100731282 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 205 | MO | Tropicos | 100731294 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 6267 | MO | Tropicos | 100731291 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 3981 | MO | Tropicos | 100731368 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | s.n. | MO | Tropicos | 100731364 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 912 | MO | Tropicos | 100731361 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 600 | MO | Tropicos | 100731375 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 24383 | MO | Tropicos | 100731371 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | s.n. | MO | Tropicos | 100731396 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | s.n. | MO | Tropicos | 100731394 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 1367 | MO | Tropicos | 100731408 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | s.n. | MO | Tropicos | 100731407 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 8478 | MO | Tropicos | 100731406 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 4866 | MO | Tropicos | 100731403 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | s.n. | MO | Tropicos | 100731401 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 4366 | MO | Tropicos | 100731410 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 57 | MO | Tropicos | 100731409 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | s.n. | MO | Tropicos | 100731304 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | s.n. | MO | Tropicos | 100731303 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 3296 | MO | Tropicos | 100731302 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 4616 | MO | Tropicos | 100731301 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | s.n. | MO | Tropicos | 100731300 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | s.n. | MO | Tropicos | 100731298 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 107 | MO | Tropicos | 100731297 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 1112 | MO | Tropicos | 100731312 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 5D | MO | Tropicos | 100731311 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | s.n. | MO | Tropicos | 100731310 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 2446 | MO | Tropicos | 100731308 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 1124 | MO | Tropicos | 100731306 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | s.n. | MO | Tropicos | 100731319 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 1837 | MO | Tropicos | 100731318 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 20326 | MO | Tropicos | 100731316 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 3869 | MO | Tropicos | 100731315 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 3904 | MO | Tropicos | 100731314 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 1252 | MO | Tropicos | 100731328 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | s.n. | MO | Tropicos | 100731327 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | s.n. | MO | Tropicos | 100731324 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | s.n. | MO | Tropicos | 100731323 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | s.n. | MO | Tropicos | 100731321 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 707 | MO | Tropicos | 100731336 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 1203 | MO | Tropicos | 100731334 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 1296 | MO | Tropicos | 100731333 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 1347 | MO | Tropicos | 100731331 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 1196 | MO | Tropicos | 100731329 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 1927 | MO | Tropicos | 100731340 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | s.n. | MO | Tropicos | 100731339 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 877 | MO | Tropicos | 100731359 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 5F | MO | Tropicos | 100731357 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 209 | MO | Tropicos | 100731753 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | s.n. | MO | Tropicos | 100731750 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | s.n. | MO | Tropicos | 100731749 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 589 | MO | Tropicos | 100731747 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | s.n. | MO | Tropicos | 100731757 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 3887 | MO | Tropicos | 100731766 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 588 | MO | Tropicos | 100731774 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | s.n. | MO | Tropicos | 100731784 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | s.n. | MO | Tropicos | 100731781 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 6108 | MO | Tropicos | 100731779 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 862 | MO | Tropicos | 100731787 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 9 | MO | Tropicos | 100731720 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 3999 | MO | Tropicos | 100731718 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 708 | MO | Tropicos | 100731727 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 1063 | MO | Tropicos | 100731723 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 859 | MO | Tropicos | 100731732 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 1053 | MO | Tropicos | 100731730 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 5C | MO | Tropicos | 100731741 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 143 | MO | Tropicos | 100733512 | no |
| Ageratina areolaris (DC.) Gage ex B.L. Turner | Mexico | | 54 | MO | Tropicos | 100739293 | no |
| Ageratina rhomboidea (Kunth) R.M. King & H. Rob. | Mexico | | 244 | MO | Tropicos | 100739234 | no |
| Ageratina ramireziorum (J. Espinosa) B.L. Turner | Mexico | | 353 | MO | Tropicos | 100739247 | no |
| Ageratina areolaris (DC.) Gage ex B.L. Turner | Mexico | | 56 | MO | Tropicos | 100736451 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | O.A. Stevens | s.n. | MO | Tropicos | 100799412 | no |
| Ageratina aromatica (L.) Spach | United States | P.J. Philson | s.n. | MO | Tropicos | 100799465 | no |
| Ageratina acevedoi H. Rob. | Bolivia, Plurinational State of | | 6577 | MO | Tropicos | 100597865 | no |
| Ageratina acevedoi H. Rob. | Bolivia, Plurinational State of | | 22434 | MO | Tropicos | 100597871 | no |
| Ageratina adenophora (Spreng.) R.M. King & H. Rob. | South Africa | P.B. Phillipson | 5241 | MO | Tropicos | 100604352 | no |
| Ageratina popayanensis (Hieron.) R.M. King & H. Rob. | Colombia | | 12277 | MO | Tropicos | 100702809 | no |
| Ageratina Spach | Bolivia, Plurinational State of | | 636 | MO | Tropicos | 100701834 | no |
| Ageratina Spach | Bolivia, Plurinational State of | | 1042 | MO | Tropicos | 100701868 | no |
| Ageratina Spach | Bolivia, Plurinational State of | | 772 | MO | Tropicos | 100701861 | no |
| Ageratina Spach | Bolivia, Plurinational State of | | 1161 | MO | Tropicos | 100701875 | no |
| Ageratina mairetiana (DC.) R.M. King & H. Rob. | Unknown or unspecified country | | 1475 | MO | Tropicos | 100700469 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | J. Richard Abbott, Brenda Herring | 13768 | MO | Tropicos | 100785956 | no |
| Ageratina aromatica (L.) Spach | United States | J. Richard Abbott | 23554 | MO | Tropicos | 100785957 | no |
| Ageratina jucunda (Greene) Clewell & Wooten | United States | J. Richard Abbott, Barbara Carlsward, Kurt Neubig | 18370 | MO | Tropicos | 100785958 | no |
| Ageratina jucunda (Greene) Clewell & Wooten | United States | J. Richard Abbott | 23718 | MO | Tropicos | 100785959 | yes |
| Ageratina jucunda (Greene) Clewell & Wooten | United States | J. Richard Abbott, LeAnn White | 22344 | MO | Tropicos | 100785960 | no |
| Ageratina jucunda (Greene) Clewell & Wooten | United States | J. Richard Abbott, Barbara Carlsward | 8086 | MO | Tropicos | 100785961 | no |
| Ageratina jucunda (Greene) Clewell & Wooten | United States | J. Richard Abbott, Randy Mears | 9651 | MO | Tropicos | 100785962 | no |
| Ageratina jucunda (Greene) Clewell & Wooten | United States | J. Richard Abbott, Howard Horne | 14012 | MO | Tropicos | 100785963 | no |
| Ageratina jucunda (Greene) Clewell & Wooten | United States | J. Richard Abbott | 17333 | MO | Tropicos | 100785964 | no |
| Ageratina altissima var. altissima | United States | | 8292 | MO | Tropicos | 100949947 | no |
| Ageratina tinifolia (Kunth) R.M. King & H. Rob. | Colombia | | 4450 | MO | Tropicos | 100930552 | yes |
| Ageratina Spach | Peru | | 29601 | MO | Tropicos | 100952441 | no |
| Ageratina ligustrina (DC.) R.M. King & H. Rob. | Mexico | | 93 | MO | Tropicos | 100994397 | no |
| Ageratina sternbergiana (DC.) R. M. King & H. Rob. | Bolivia, Plurinational State of | Beck, S. G. | 27869 | G | G | 165324/1 | no |
| Ageratina Spach | Ecuador | | 30 | MO | Tropicos | 100983560 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 002 | MO | Tropicos | 100988549 | yes |
| Ageratina Spach | Bolivia, Plurinational State of | | MZ 1994 | MO | Tropicos | 100985779 | no |
| Ageratina Spach | Bolivia, Plurinational State of | | MM 573 | MO | Tropicos | 100985778 | no |
| Ageratina Spach | Bolivia, Plurinational State of | | 3860 | MO | Tropicos | 100986027 | no |
| Ageratina Spach | Bolivia, Plurinational State of | | 3891 | MO | Tropicos | 100986043 | no |
| Ageratina Spach | Bolivia, Plurinational State of | | 3902 | MO | Tropicos | 100986040 | no |
| Ageratina rubricaulis (Kunth) R.M. King & H. Rob. | Mexico | | 930 | MO | Tropicos | 100903461 | no |
| Ageratina Spach | Peru | | 28964 | MO | Tropicos | 100949020 | no |
| Ageratina tristis (DC.) R.M. King & H. Rob. | Unknown or unspecified country | | 1281 | MO | Tropicos | 100922637 | no |
| Ageratina mairetiana (DC.) R.M. King & H. Rob. | Mexico | | 49 | MO | Tropicos | 101008632 | no |
| Ageratina mairetiana (DC.) R.M. King & H. Rob. | Mexico | | 14798 | MO | Tropicos | 101014917 | no |
| Ageratina vernicosa (Sch. Bip. ex Greenm.) R.M. King & H. Rob. | Mexico | | 14938 | MO | Tropicos | 101016274 | no |
| Ageratina glabrata (Kunth) R.M. King & H. Rob. | Mexico | | 13255 | MO | Tropicos | 101016300 | no |
| Ageratina mairetiana (DC.) R.M. King & H. Rob. | Mexico | | 13364bis | MO | Tropicos | 101014373 | no |
| Ageratina adenophora (Spreng.) R.M. King & H. Rob. | New Zealand | | 13616 | MO | Tropicos | 101014658 | yes |
| Ageratina riparia (Regel) R.M. King & H. Rob. | New Zealand | | 13589 | MO | Tropicos | 101014656 | yes |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | El Salvador | | 2828 | MO | Tropicos | 100888461 | no |
| Ageratina ligustrina (DC.) R.M. King & H. Rob. | Costa Rica | | 4463 | MO | Tropicos | 100893684 | no |
| Ageratina ligustrina (DC.) R.M. King & H. Rob. | Mexico | | 529 | MO | Tropicos | 100893685 | yes |
| Ageratina Spach | El Salvador | | 5097 | MO | Tropicos | 100897924 | no |
| Ageratina Spach | Bolivia, Plurinational State of | | 1152 | MO | Tropicos | 101042737 | no |
| Ageratina pichinchensis (Kunth) R. M. King & H. Rob. | Costa Rica | Kriebel, R. | 2579 | G | G | 166332/1 | no |
| Ageratina bishopii R. M. King & H. Rob. | Peru | King, R. M. & L. E. Bishop | 9246 | G | G | 212839/1 | no |
| Ageratina azangaroensis (Sch. Bip. ex Wedd.) R.M. King & H. Rob. | Argentina | | 13505 | MO | Tropicos | 100934582 | no |
| Ageratina tinifolia (Kunth) R.M. King & H. Rob. | Colombia | | 5091 | MO | Tropicos | 100940763 | no |
| Ageratina glyptophlebia (B.L. Rob.) R.M. King & H. Rob. | Colombia | | 4805 | MO | Tropicos | 100938303 | no |
| Ageratina popayanensis (Hieron.) R.M. King & H. Rob. | Colombia | | 4507 | MO | Tropicos | 100938297 | yes |
| Ageratina tinifolia (Kunth) R.M. King & H. Rob. | Colombia | | 030 | MO | Tropicos | 100938314 | no |
| Ageratina glyptophlebia (B.L. Rob.) R.M. King & H. Rob. | Colombia | | 4844 | MO | Tropicos | 100938305 | no |
| Ageratina ligustrina (DC.) R.M. King & H. Rob. | Costa Rica | | 9834 | MO | Tropicos | 100942948 | no |
| Ageratina proba (N.E. Br.) R.M. King & H. Rob. | Peru | | 80 | MO | Tropicos | 100942523 | yes |
| Ageratina tomentella (Schrad.) R.M. King & H. Rob. | Mexico | | 10145 | MO | Tropicos | 100974285 | no |
| Ageratina azangaroensis (Sch. Bip. ex Wedd.) R.M. King & H. Rob. | Peru | | 1685 | MO | Tropicos | 100973794 | no |
| Ageratina liebmannii (Sch. Bip. ex Klatt) R.M. King & H. Rob. | Germany | | s.n. | MO | Tropicos | 100973873 | no |
| Ageratina Spach | Bolivia, Plurinational State of | | 16678 | MO | Tropicos | 100974041 | no |
| Ageratina blepharilepis (Sch. Bip.) R.M. King & H. Rob. | Mexico | | 727 | MO | Tropicos | 100971004 | no |
| Ageratina muelleri (Sch. Bip. ex Klatt) R.M. King & H. Rob. | Mexico | | 691 | MO | Tropicos | 100971012 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 28624 | MO | Tropicos | 101029162 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | | 28681 | MO | Tropicos | 101029182 | no |
| Ageratina areolaris (DC.) Gage ex B.L. Turner | Mexico | | 611 | MO | Tropicos | 100971016 | no |
| Ageratina areolaris (DC.) Gage ex B.L. Turner | Mexico | | 607 | MO | Tropicos | 100971014 | no |
| Ageratina glabrata (Kunth) R.M. King & H. Rob. | Mexico | | 13370 | MO | Tropicos | 101023053 | no |
| Ageratina glabrata (Kunth) R.M. King & H. Rob. | Mexico | | 14764 | MO | Tropicos | 101023064 | no |
| Ageratina areolaris (DC.) Gage ex B.L. Turner | Mexico | | 13547 | MO | Tropicos | 101023072 | no |
| Ageratina pazcuarensis (Kunth) R.M. King & H. Rob. | Mexico | | 14467 | MO | Tropicos | 101016957 | no |
| Ageratina glabrata (Kunth) R.M. King & H. Rob. | Mexico | | 15362 | MO | Tropicos | 101016979 | no |
| Ageratina conspicua R.M. King & H. Rob. | Mexico | | 15185 | MO | Tropicos | 101016977 | no |
| Ageratina mairetiana var. mairetiana | Mexico | | 15172 | MO | Tropicos | 101016976 | no |
| Ageratina glabrata (Kunth) R.M. King & H. Rob. | Mexico | | 15398 | MO | Tropicos | 101016982 | no |
| Ageratina rhomboidea (Kunth) R.M. King & H. Rob. | Mexico | | 14193 | MO | Tropicos | 101039791 | no |
| Ageratina kupperi (Suess.) R.M. King & H. Rob. | Costa Rica | | 2167 | MO | Tropicos | 101036919 | no |
| Ageratina pazcuarensis (Kunth) R.M. King & H. Rob. | Mexico | | 14305 | MO | Tropicos | 101036116 | no |
| Ageratina kupperi (Suess.) R.M. King & H. Rob. | Panama | | 4088 | MO | Tropicos | 101033285 | yes |
| Ageratina baccharoides (Kunth) R.M. King & H. Rob. | Colombia | A. Gentry, G. Davidse & E. Forero | 8897 | MO | Tropicos | 1784094 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Venezuela, Bolivarian Republic of | Gerrit Davidse & Angel C. González | 19496 | MO | Tropicos | 1846171 | no |
| Ageratina crassiramea (B.L. Rob.) R.M. King & H. Rob. | Nicaragua | D.A. Neill | 3111 | MO | Tropicos | 1886753 | no |
| Ageratina davidsei R.M. King & H. Rob. | Colombia | G. Davidse, A. Gentry & F. Llanos | 5622 | MO | Tropicos | 1881403 | yes |
| Ageratina pseudochilca (Benth.) R.M. King & H. Rob. | Ecuador | Carlos E. Cerón & Zaida Paéz | 15937 | MO | Tropicos | 1714727 | no |
| Ageratina pseudochilca (Benth.) R.M. King & H. Rob. | Ecuador | Carlos Ceron & Salvia Albán | 14885 | MO | Tropicos | 1696723 | no |
| Ageratina pseudochilca (Benth.) R.M. King & H. Rob. | Ecuador | Carlos E. Cerón & Mery Mortesdecsa | 15998 | MO | Tropicos | 1715016 | no |
| Ageratina pseudochilca (Benth.) R.M. King & H. Rob. | Ecuador | Carlos E. Cerón & Nelson Gallo | 19613 | MO | Tropicos | 1744750 | no |
| Ageratina adenophora (Spreng.) R.M. King & H. Rob. | India | Noble, William Allister | 16-m | MO | Tropicos | 1840701 | no |
| Ageratina Spach | Ecuador | Carlos E. Cerón, Miryam Reyna & Angelita Quevedo | 19689 | MO | Tropicos | 1745972 | no |
| Ageratina tinifolia (Kunth) R.M. King & H. Rob. | Ecuador | Carlos E. Cerón | 19729 | MO | Tropicos | 1746056 | no |
| Ageratina glauca (Sch. Bip. ex Klatt) R.M. King & H. Rob. | Mexico | Gerrit Davidse & Jeany Davidse | 9744 | MO | Tropicos | 1772381 | no |
| Ageratina Spach | Bolivia, Plurinational State of | L. Arroyo, S. Churchill, D. Arroyo, C. Torrico & S. Montenegro | 1872 | MO | Tropicos | 1769711 | no |
| Ageratina Spach | Ecuador | Thomas B. Croat, Lynn Hannon & Petra Schmidt | 86172 | MO | Tropicos | 1766302 | no |
| Ageratina glyptophlebia (B.L. Rob.) R.M. King & H. Rob. | Colombia | A. Gentry & L. Forero | 15328 | MO | Tropicos | 1826386 | no |
| Ageratina neriifolia (B.L. Rob.) R.M. King & H. Rob. | Venezuela, Bolivarian Republic of | Gerrit Davidse & Angel C. González | 22172 | MO | Tropicos | 1876721 | no |
| Ageratina Spach | Ecuador | Thomas B. Croat, Lynn Hannon & Marck Menke | 88438 | MO | Tropicos | 1873211 | no |
| Ageratina theifolia (Benth.) R.M. King & H. Rob. | Venezuela, Bolivarian Republic of | Gerrit Davidse & Angel C. González | 22064 | MO | Tropicos | 1875711 | no |
| Ageratina ligustrina (DC.) R.M. King & H. Rob. | Mexico | Alonso Méndez G. | 8447 | MO | Tropicos | 1707145 | no |
| Ageratina Spach | Colombia | J. Betancur, et al. | 4190 | MO | Tropicos | 1723745 | no |
| Ageratina sodiroi (Hieron.) R.M. King & H. Rob. | Ecuador | Diana Fernández, M. Cerna & P. Villacrés | 356 | MO | Tropicos | 1831074 | no |
| Ageratina gentryana B.L. Turner | Mexico | A.C. Sanders et al. | 22686 | MO | Tropicos | 1746865 | no |
| Ageratina malacolepis (B.L. Rob.) R.M. King & H. Rob. | Mexico | A.C. Sanders et al. | 22530 | MO | Tropicos | 1746897 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Mexico | A.C. Sanders et al. | 22594 | MO | Tropicos | 1746895 | no |
| Ageratina tinifolia (Kunth) R.M. King & H. Rob. | Ecuador | Carlos E. Cerón | 17455 | MO | Tropicos | 1753795 | no |
| Ageratina tinifolia (Kunth) R.M. King & H. Rob. | Ecuador | Carlos E. Cerón | 17478 | MO | Tropicos | 1753888 | no |
| Ageratina gloeoclada (B.L. Rob.) R.M. King & H. Rob. | Bolivia, Plurinational State of | Mandon | 258 | MO | Tropicos | 1814153 | yes |
| Ageratina pentlandiana (DC.) R.M. King & H. Rob. | Bolivia, Plurinational State of | Pentland | s.n. | MO | Tropicos | 1814215 | no |
| Ageratina Spach | Bolivia, Plurinational State of | N. Paniagua, A. Araujo, H. Cabrera, R. Alvarez, A, Alvarez, L. Mamani | 5746 | MO | Tropicos | 1864476 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Mexico | E. Martínez S. | 17578 | MO | Tropicos | 1705001 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Mexico | E. Martínez S. | 18066 | MO | Tropicos | 1705000 | no |
| Ageratina ixiocladon (Benth.) R.M. King & H. Rob. | Panama | Barry E. Hammel & W.G. D'Arcy | 6418 | MO | Tropicos | 1705188 | no |
| Ageratina ixiocladon (Benth.) R.M. King & H. Rob. | Panama | Barry E. Hammel, W.G. D'Arcy, E. J. Hill, S. Schwartz, O. Wolcott & H. Wolcott | 6709 | MO | Tropicos | 1705240 | no |
| Ageratina chiriquensis (B.L. Rob.) R.M. King & H. Rob. | Panama | Barry E. Hammel & W.G. D'Arcy | 6380 | MO | Tropicos | 1705258 | no |
| Ageratina subcordata (Benth.) R.M. King & H. Rob. | Costa Rica | Armando Estrada, J. Sánchez, J. Solano & Otros | 2764 | MO | Tropicos | 1697765 | no |
| Ageratina Spach | Panama | J.E. Averett, W.G. D'Arcy & Barry E. Hammel | 1036 | MO | Tropicos | 1709096 | no |
| Ageratina Spach | Panama | W.G. D'Arcy & Barry E. Hammel | 12435 | MO | Tropicos | 1709092 | no |
| Ageratina Spach | Panama | Barry E. Hammel & W.G. D'Arcy | 6412 | MO | Tropicos | 1709093 | no |
| Ageratina Spach | Panama | W.G. D'Arcy & Barry E. Hammel | 12433 | MO | Tropicos | 1709090 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Panama | Barry E. Hammel, W.G. D'Arcy, E.C. Hill, S. Schwartz, O. Wolcott & H. Wolcott | 6761 | MO | Tropicos | 1709122 | no |
| Ageratina anisochroma (Klatt) R.M. King & H. Rob. | Panama | Barry E. Hammel, W.G. D'Arcy & John E. Averett | 6467 | MO | Tropicos | 1709120 | no |
| Ageratina anisochroma (Klatt) R.M. King & H. Rob. | Panama | Barry E. Hammel, W.G. D'Arcy & John E. Averett | 6579 | MO | Tropicos | 1709108 | no |
| Ageratina ligustrina (DC.) R.M. King & H. Rob. | Mexico | Alush Méndez Ton & María Concepcion Mtz. de López | 9420 | MO | Tropicos | 1709423 | no |
| Ageratina pringlei (B.L. Rob. & Greenm.) R.M. King & H. Rob. | Mexico | Alush Méndez Ton & María Concepcion Mtz. de López | 9465 | MO | Tropicos | 1709460 | no |
| Ageratina rivalis (Greenm.) R.M. King & H. Rob. | Mexico | Esteban M. Martínez S., M. Sousa & A. Reyes | 22552 | MO | Tropicos | 1710845 | no |
| Ageratina ligustrina (DC.) R.M. King & H. Rob. | Mexico | Esteban Martínez S., M. Sousa & A. Reyes | 22439 | MO | Tropicos | 1710836 | no |
| Ageratina pichinchensis bustamenta (DC.) R.M. King & H. Rob. | El Salvador | E.A. Montalvo & R. Villacorta | EAM06438 | MO | Tropicos | 1708193 | no |
| Ageratina vernalis (Vatke & Kurtz) R.M. King & H. Rob. | Mexico | Alush Méndez Ton & María Concepcion Mtz. de López | 9678 | MO | Tropicos | 1709966 | no |
| Ageratina subinclusa (Klatt) R.M. King & H. Rob. | Mexico | Alush Méndez Ton & María Concepcion Mtz. de López | 9414 | MO | Tropicos | 1710030 | no |
| Ageratina ligustrina (DC.) R.M. King & H. Rob. | Mexico | Alush Méndez Ton & María Concepcion Mtz. de López | 9482 | MO | Tropicos | 1710024 | no |
| Ageratina ligustrina (DC.) R.M. King & H. Rob. | Mexico | Alush Méndez Ton & María Concepcion Mtz. de López | 9511 | MO | Tropicos | 1710135 | no |
| Ageratina ligustrina (DC.) R.M. King & H. Rob. | Mexico | Alush Méndez Ton & María Concepcion Mtz. de López | 9448 | MO | Tropicos | 1710132 | no |
| Ageratina zunilana (Standl. & Steyerm.) R.M. King & H. Rob. | Mexico | Esteban Martínez S, M. Sousa & A. Reyes | 22424 | MO | Tropicos | 1710405 | no |
| Ageratina ligustrina (DC.) R.M. King & H. Rob. | Guatemala | E. Martínez S. & M. Ramírez | 20803 | MO | Tropicos | 1710403 | no |
| Ageratina bustamenta (DC.) R.M. King & H. Rob. | Mexico | Armando Pérez M. | 239 | MO | Tropicos | 1711787 | no |
| Ageratina petiolaris (Moc. ex DC.) R.M. King & H. Rob. | Mexico | Armando Pérez M. | 238 | MO | Tropicos | 1711785 | no |
| Ageratina bustamenta (DC.) R.M. King & H. Rob. | Mexico | Armando Pérez M. | 209 | MO | Tropicos | 1711783 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Mexico | E. Martínez S., O. Téllez, F. Martínez | 3253 | MO | Tropicos | 1711915 | no |
| Ageratina ligustrina (DC.) R.M. King & H. Rob. | Mexico | Armando Pérez M. | 103 | MO | Tropicos | 1711967 | no |
| Ageratina pichinchensis bustamenta (DC.) R.M. King & H. Rob. | Honduras | Rossell Mejia | 145 | MO | Tropicos | 1712086 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Mexico | Alush Shilom Ton | 8161 | MO | Tropicos | 1712155 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Mexico | Alush Shilom Ton | 7369 | MO | Tropicos | 1712154 | no |
| Ageratina Spach | Ecuador | Carlos Morales & S. Endara | 622 | MO | Tropicos | 1705946 | no |
| Ageratina Spach | Ecuador | Carlos E. Cerón & Nelson Gallo | 19492 | MO | Tropicos | 1736049 | no |
| Ageratina Spach | Ecuador | Carlos E. Cerón | 16279 | MO | Tropicos | 1734167 | no |
| Ageratina anisochroma (Klatt) R.M. King & H. Rob. | Costa Rica | W.S. Alverson & T.P. Prinzie | 2643 | MO | Tropicos | 1740124 | no |
| Ageratina anisochroma (Klatt) R.M. King & H. Rob. | Costa Rica | Lems , K. | 650130-01 | MO | Tropicos | 1740122 | no |
| Ageratina anisochroma (Klatt) R.M. King & H. Rob. | Costa Rica | W. Dyson | 836 | MO | Tropicos | 1740123 | no |
| Ageratina pseudochilca (Benth.) R.M. King & H. Rob. | Ecuador | Carlos E. Cerón & Irma Espinoza | 16235 | MO | Tropicos | 1733707 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Nicaragua | F.C. Seymour | 4002A | MO | Tropicos | 1778232 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Nicaragua | F.C. Seymour | 4002 | MO | Tropicos | 1778230 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Nicaragua | J.T. Atwood | 4069 | MO | Tropicos | 1778393 | no |
| Ageratina Spach | Bolivia, Plurinational State of | C. Maldonado, A. Araujo, H. Cabrera, C. Calzadilla, N. Paniagua, R. Alvarez, A, Alvarez, L. Mamani | 3243 | MO | Tropicos | 1855477 | no |
| Ageratina crassiramea (B.L. Rob.) R.M. King & H. Rob. | Nicaragua | D.A. Neill | 4648 | MO | Tropicos | 1892681 | no |
| Ageratina pichinchensis bustamenta (DC.) R.M. King & H. Rob. | Panama | E.L. Tyson & H. Loftin | 5951 | MO | Tropicos | 1888316 | no |
| Ageratina chiriquensis (B.L. Rob.) R.M. King & H. Rob. | Panama | E.L. Tyson & H. Loftin | 6157 | MO | Tropicos | 1888458 | no |
| Ageratina anisochroma (Klatt) R.M. King & H. Rob. | Nicaragua | Wright, C. | s.n. | MO | Tropicos | 1517599 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Nicaragua | W. de W. Miller & L. Griscom | 32 | MO | Tropicos | 1517684 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Nicaragua | W. de W. Miller & L. Griscom | 67 | MO | Tropicos | 1517681 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Nicaragua | W. de W. Miller & L. Griscom | 14 | MO | Tropicos | 1517685 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Nicaragua | A. Garnier | 580 | MO | Tropicos | 1517679 | no |
| Ageratina tenuis (R.E. Fr.) R.M. King & H. Rob. | Bolivia, Plurinational State of | M. Nee | 49881 | MO | Tropicos | 1522572 | no |
| Ageratina azangaroensis (Sch. Bip. ex Wedd.) R.M. King & H. Rob. | Bolivia, Plurinational State of | M. Nee | 49968 | MO | Tropicos | 1524059 | no |
| Ageratina altissima var. altissima | United States | Bush, B.F. | UMO 5490 | MO | Tropicos | 1603562 | no |
| Ageratina ixiocladon (Benth.) R.M. King & H. Rob. | Costa Rica | Evelio Alfaro | 1490 | MO | Tropicos | 1600437 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Costa Rica | Alvarado, Fco. | 1 | MO | Tropicos | 1600767 | no |
| Ageratina thyrsiflora (Greene) R.M. King & H. Rob. | Mexico | E. Palmer | 755 | MO | Tropicos | 1538770 | yes |
| Ageratina choricephala (B.L. Rob.) R.M. King & H. Rob. | Mexico | C.G. Pringle | 11824 | MO | Tropicos | 1538804 | yes |
| Ageratina barbensis R.M. King & H. Rob. | Costa Rica | Robert Merrill King | 6409 | MO | Tropicos | 1538802 | yes |
| Ageratina brandegeana (B.L. Rob.) R.M. King & H. Rob. | Mexico | C.A. Purpus | 4822 | MO | Tropicos | 1538785 | yes |
| Ageratina oligocephala (DC.) R.M. King & H. Rob. | Mexico | C.A. Purpus | 1578 | MO | Tropicos | 1538782 | yes |
| Ageratina saltillensis (B.L. Rob.) R.M. King & H. Rob. | Mexico | C.G. Pringle | 10080 | MO | Tropicos | 1538774 | yes |
| Ageratina rubricaulis (Kunth) R.M. King & H. Rob. | Mexico | C.C. Parry & E. Palmer | 334 | MO | Tropicos | 1538779 | yes |
| Ageratina ernstii R.M. King & H. Rob. | Mexico | W.R. Ernst | 2569 | MO | Tropicos | 1538808 | yes |
| Ageratina espinosarum subintegrifolia (B.L. Rob.) B.L. Turner | Mexico | C.G. Pringle | 3311 | MO | Tropicos | 1538810 | yes |
| Ageratina rubricaulis (Kunth) R.M. King & H. Rob. | Mexico | C.G. Pringle | 2878 | MO | Tropicos | 1537835 | yes |
| Ageratina azangaroensis (Sch. Bip. ex Wedd.) R.M. King & H. Rob. | Peru | A. Gentry, E. Zardini, R. Vasquez & R. Tredwell | 37372 | MO | Tropicos | 1538164 | no |
| Ageratina vernicosa (Sch. Bip. ex Greenm.) R.M. King & H. Rob. | Mexico | C.A. Purpus | 180 | MO | Tropicos | 1540568 | yes |
| Ageratina palmeri (A. Gray) Gage ex B.L. Turner | Mexico | Palmer | 648 | MO | Tropicos | 1543379 | yes |
| Ageratina jaliscensis (B.L. Rob.) Gage ex B.L. Turner | Mexico | C.G. Pringle | 8764 | MO | Tropicos | 1543381 | yes |
| Ageratina altissima var. altissima | United States | Ryan, J. | 1419 | MO | Tropicos | 1687846 | no |
| Ageratina tenuis (R.E. Fr.) R.M. King & H. Rob. | Bolivia, Plurinational State of | M. Nee | 45317 | MO | Tropicos | 1531507 | no |
| Ageratina sternbergiana (DC.) R.M. King & H. Rob. | Bolivia, Plurinational State of | M. Nee | 33306 | MO | Tropicos | 1531747 | yes |
| Ageratina gynoxoides (Wedd.) R.M. King & H. Rob. | Colombia | F.W. Pennell | 2268 | MO | Tropicos | 1562480 | no |
| Ageratina allenii (Standl.) R.M. King & H. Rob. | Costa Rica | A. Picado & B. Gamboa R. | 332 | MO | Tropicos | 1599407 | no |
| Ageratina fleischmannioides H. Rob. | Colombia | A. Zapata & E. Cespedes | 4 | MO | Tropicos | 1590767 | no |
| Ageratina glyptophlebia (B.L. Rob.) R.M. King & H. Rob. | Colombia | R.D. Metcalf & J. Cuatrecasas | 30160 | MO | Tropicos | 1597737 | no |
| Ageratina dendroides (Spreng.) R.M. King & H. Rob. | Ecuador | J. Homeier | 519 | MO | Tropicos | 1592594 | no |
| Ageratina gracilis (Kunth) R.M. King & H. Rob. | Colombia | J. Araque & F. Barkley | 18A007 | MO | Tropicos | 1596959 | no |
| Ageratina popayanensis (Hieron.) R.M. King & H. Rob. | Colombia | J. Hunziker | 12083 | MO | Tropicos | 1596953 | no |
| Ageratina altissima var. altissima | United States | Dierker, William W. | 00131 | MO | Tropicos | 1644212 | no |
| Ageratina riparia (Regel) R.M. King & H. Rob. | Sri Lanka | Comanor, P. L. | 1056 | MO | Tropicos | 1684170 | no |
| Ageratina altissima var. altissima | United States | Ryan, J. | 1050 | MO | Tropicos | 1678489 | no |
| Ageratina altissima var. altissima | United States | Taylor, M. | 5645 | MO | Tropicos | 1621463 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | Daniels, F.P. | UMO 29015 | MO | Tropicos | 1676387 | no |
| Ageratina dendroides (Spreng.) R.M. King & H. Rob. | Ecuador | P.M. Jørgensen, C. Ulloa & J. Caranqui | 2145 | MO | Tropicos | 1515108 | no |
| Ageratina altissima var. altissima | United States | Eaglesfield, Carrol F. | 204 | MO | Tropicos | 1565555 | no |
| Ageratina altissima var. altissima | United States | Gerrit Davidse | 37713 | MO | Tropicos | 1588712 | yes |
| Ageratina altissima var. altissima | United States | Gerrit Davidse | 37782 | MO | Tropicos | 1589263 | yes |
| Ageratina tinifolia (Kunth) R.M. King & H. Rob. | Colombia | D. Soejarto, R. Fonnegra & S. Sierra | 3017 | MO | Tropicos | 1589349 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Colombia | R.D. Metcalf & J. Cuatrecasas | 30126 | MO | Tropicos | 1589411 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Colombia | M. Nee & S. Mori | 3867 | MO | Tropicos | 1589407 | no |
| Ageratina popayanensis (Hieron.) R.M. King & H. Rob. | Colombia | S. Morales y J.R. Giraldo | 450 | MO | Tropicos | 1589396 | no |
| Ageratina popayanensis (Hieron.) R.M. King & H. Rob. | Colombia | F. Barkley & G. Gutiérrez | 1677 | MO | Tropicos | 1589389 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | United States | G. Walters & M. Merello | 826 | MO | Tropicos | 1582253 | no |
| Ageratina fastigiata (Kunth) R.M. King & H. Rob. | Peru | J. Campos, C. Díaz, E. Tineo & T. Guevara. | 5008 | MO | Tropicos | 1552178 | no |
| Ageratina Spach | Peru | C. Díaz, J. Campos, T. Guevara & E. Tineo | 9748 | MO | Tropicos | 1550850 | no |
| Ageratina macvaughii R.M. King & H. Rob. | Mexico | McVaugh | 24669 | MO | Tropicos | 1701344 | yes |
| Ageratina mairetiana (DC.) R.M. King & H. Rob. | Mexico | D.E. Breedlove | 66975A | MO | Tropicos | 1700311 | no |
| Ageratina anisochroma (Klatt) R.M. King & H. Rob. | Costa Rica | Clark P. Cowan | 4533 | MO | Tropicos | 1702950 | no |
| Ageratina Spach | Costa Rica | Clark P. Cowan | 4499 | MO | Tropicos | 1703006 | no |
| Ageratina vernalis (Vatke & Kurtz) R.M. King & H. Rob. | Mexico | Alonso Méndez Ton & Maria Concepcion Mtz. de Lopez | 9569 | MO | Tropicos | 1703228 | no |
| Ageratina bustamenta (DC.) R.M. King & H. Rob. | Mexico | Alonso Méndez Lon & Maria Concepcion Mtz. de Lopez | 9545 | MO | Tropicos | 1703260 | no |
| Ageratina pringlei (B.L. Rob. & Greenm.) R.M. King & H. Rob. | Mexico | Alonso Méndez Ton & Maria Concepcion Mtz. de Lopez | 9521 | MO | Tropicos | 1703245 | no |
| Ageratina vernalis (Vatke & Kurtz) R.M. King & H. Rob. | Mexico | Alonso Méndez Ton & Maria Concepcion Mtz. de Lopez | 9555 | MO | Tropicos | 1703239 | no |
| Ageratina ligustrina (DC.) R.M. King & H. Rob. | Mexico | Alonso Méndez Ton & Marica Concepcion Mtz. de Lopez | 9554 | MO | Tropicos | 1703266 | no |
| Ageratina pichinchensis bustamenta (DC.) R.M. King & H. Rob. | Mexico | Alonso Méndez Ton & Maria Concepcion Mtz. de Lopez | 9550 | MO | Tropicos | 1703265 | no |
| Ageratina ligustrina (DC.) R.M. King & H. Rob. | Costa Rica | Harvey E. Stork | 1312 | MO | Tropicos | 1696200 | no |
| Ageratina anisochroma (Klatt) R.M. King & H. Rob. | Costa Rica | H.E. Stork | 2349 | MO | Tropicos | 1696354 | no |
| Ageratina subcordata (Benth.) R.M. King & H. Rob. | Costa Rica | Harvey E. Stork | 2388 | MO | Tropicos | 1696365 | no |
| Ageratina anisochroma (Klatt) R.M. King & H. Rob. | Costa Rica | Robert Merrill King, Victor Castro & Manuel Sibaja Saborio | 10008 | MO | Tropicos | 1702380 | no |
| Ageratina ixiocladon (Benth.) R.M. King & H. Rob. | Costa Rica | Robert Merrill King, Victor Castro & Manuel Sibaja Saborio | 10006 | MO | Tropicos | 1702425 | no |
| Ageratina anisochroma (Klatt) R.M. King & H. Rob. | Costa Rica | Robert Merrill King & Victor Castro | 10002 | MO | Tropicos | 1702409 | no |
| Ageratina Spach | Ecuador | Carmen Ulloa & Danilo Minga | 1426 | MO | Tropicos | 1945836 | no |
| Ageratina anisochroma (Klatt) R.M. King & H. Rob. | Costa Rica | Gerrit Davidse & Richard W. Pohl | 1580 | MO | Tropicos | 1946591 | no |
| Ageratina theifolia (Benth.) R.M. King & H. Rob. | Venezuela, Bolivarian Republic of | Ronald Liesner, Angel González, Robert Wingfield & Charles Burandt | 8008 | MO | Tropicos | 2004169 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Venezuela, Bolivarian Republic of | Ronald Liesner, Angel González, Robert Wingfield & Charles Burandt | 7996 | MO | Tropicos | 2000069 | no |
| Ageratina Spach | Bolivia, Plurinational State of | D. Soto, A. Carrasco, E. Calzadilla, L. Arroyo, R. Ledezma, C. Roth, D. Rocabado | 137 | MO | Tropicos | 1969500 | no |
| Ageratina dendroides (Spreng.) R.M. King & H. Rob. | Ecuador | Thomas B. Croat & Marck Menke | 89879 | MO | Tropicos | 1904449 | yes |
| Ageratina Spach | Ecuador | Thomas B. Croat & Marck Menke | 89993 | MO | Tropicos | 1904813 | no |
| Ageratina crassiramea (B.L. Rob.) R.M. King & H. Rob. | Nicaragua | D.A. Neill | 4211 | MO | Tropicos | 1891773 | no |
| Ageratina Spach | Ecuador | Thomas B. Croat & Marck Menke | 89188 | MO | Tropicos | 1891942 | no |
| Ageratina Spach | Ecuador | Thomas B. Croat & Marck Menke | 89200 | MO | Tropicos | 1891954 | no |
| Ageratina dendroides (Spreng.) R.M. King & H. Rob. | Ecuador | Thomas B. Croat & Lynn Hannon | 88124 | MO | Tropicos | 1898447 | no |
| Ageratina Spach | Ecuador | Thomas B. Croat & Lynn Hannon | 88155 | MO | Tropicos | 1898487 | no |
| Ageratina Spach | Peru | I. Huamantupa & G. Calatayud | 2282 | MO | Tropicos | 1924694 | no |
| Ageratina Spach | Peru | W. Galiano, L. Valenzuela, E. Suclli, I. Huamantupa & F. Carazas | 4054 | MO | Tropicos | 1924947 | no |
| Ageratina Spach | Peru | J. Farfán, F. Carazas, O. Farfán & E. Urquiaga | 285 | MO | Tropicos | 1924985 | no |
| Ageratina Spach | Peru | J. Farfán, F. Carazas, O. Farfán & E. Urquiaga | 295 | MO | Tropicos | 1925015 | no |
| Ageratina Spach | Peru | J. Farfán, F. Carazas, O. Farfán & E. Urquiaga | 372 | MO | Tropicos | 1925243 | no |
| Ageratina Spach | Peru | J. Farfán, F. Carazas, O. Farfán & E. Urquiaga | 402 | MO | Tropicos | 1925333 | no |
| Ageratina Spach | Peru | L. Valenzuela, E. Suclli, I. Huamantupa & J. Farfán | 1292 | MO | Tropicos | 1925907 | no |
| Ageratina Spach | Peru | L. Valenzuela, E. Suclli, I. Huamantupa, J. Farfán & F. Carazas | 300 | MO | Tropicos | 1926237 | no |
| Ageratina Spach | Peru | Efrain Succlli, L. Valenzuela, I. Huamantupa & F. Carazas | 864 | MO | Tropicos | 1926575 | no |
| Ageratina Spach | Peru | G. Calatayud, I. Huamantupa, E. Suclli, J. Farfán, A. Carazas & Y. Vizcardo | 1295 | MO | Tropicos | 1927382 | no |
| Ageratina Spach | Ecuador | Jorge Ramos, J. Contreras, L. Ramos, A. Tigsu & R. Tigsu | 6481 | MO | Tropicos | 1931766 | no |
| Ageratina parviceps H. Rob. | Ecuador | Jorge Ramos, J. Contreras, L. Ramos & L. Usuña | 6780 | MO | Tropicos | 1932039 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Ecuador | Jorge Ramos, J. Contreras, L. Ramos & L. Usuña | 6776 | MO | Tropicos | 1932035 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Ecuador | Jorge Ramos, J. Contreras, L. Ramos & F. Biteri | 7011 | MO | Tropicos | 1932268 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Ecuador | Jorge Ramos, J. Contreras, L. Ramos, A. Tigsu y R. Tigsu | 5897 | MO | Tropicos | 1931185 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Ecuador | Jorge Ramos, J. Contreras, L. Ramos, A. Tigsu & R. Tigsu | 6239 | MO | Tropicos | 1931524 | no |
| Ageratina enixa (B.L. Rob.) R.M. King & H. Rob. | Mexico | Jared G. Smith | 477 | MO | Tropicos | 2102518 | yes |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Mexico | Ernest Lyonnet | 3224 | MO | Tropicos | 2066788 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Honduras | Marcial Erazo Peña, G. Cruz & P. Purdy | 259 | MO | Tropicos | 2066793 | no |
| Ageratina wurdackii R.M. King & H. Rob. | Peru | Paul C. Hutchison & J. Kenneth Wright | 5574 | MO | Tropicos | 2117273 | no |
| Ageratina subcordata (Benth.) R.M. King & H. Rob. | Costa Rica | J.F. Pruski, G. Sancho & Alex Rodriguez | 3847 | MO | Tropicos | 2378134 | no |
| Ageratina macbridei (B.L. Rob.) R.M. King & H. Rob. | Peru | Felix Woytkowski | 8010 | MO | Tropicos | 783264 | no |
| Ageratina warnockii B.L. Turner | Mexico | S. O'Kane, A. Collwell & A. Salinas | 3326 | MO | Tropicos | 801493 | no |
| Ageratina anisochroma (Klatt) R.M. King & H. Rob. | Costa Rica | Barry Hammel, Paul & Hiltje Maas | 18040 | MO | Tropicos | 900415 | no |
| Ageratina Spach | Costa Rica | Erick Bello | 4957 | MO | Tropicos | 899752 | no |
| Ageratina lucida (Ortega) R.M. King & H. Rob. | Mexico | B. Boyle & A. Boyle | 505 | MO | Tropicos | 922936 | no |
| Ageratina ligustrina (DC.) R.M. King & H. Rob. | Mexico | B. Boyle & A. Boyle | 708 | MO | Tropicos | 923212 | no |
| Ageratina gracilis (Kunth) R.M. King & H. Rob. | Colombia | A. Gentry, G. Davidse & L. Chaparro | 8942 | MO | Tropicos | 928438 | no |
| Ageratina popayanensis (Hieron.) R.M. King & H. Rob. | Colombia | Hermes Cuadros | 4917 | MO | Tropicos | 929675 | no |
| Ageratina gracilis (Kunth) R.M. King & H. Rob. | Colombia | Hermes Cuadros | 5003 | MO | Tropicos | 929765 | no |
| Ageratina Spach | Colombia | Hermes Cuadros | 5032 | MO | Tropicos | 929813 | no |
| Ageratina Spach | Colombia | Hermes Cuadros | 5057 | MO | Tropicos | 929832 | no |
| Ageratina ligustrina (DC.) R.M. King & H. Rob. | Mexico | Brad Boyle & A. Boyle | 3760 | MO | Tropicos | 925775 | no |
| Ageratina popayanensis (Hieron.) R.M. King & H. Rob. | Colombia | R. Callejas, H. Restrepo & C. Martinez | 10984 | MO | Tropicos | 925804 | no |
| Ageratina altissima var. altissima | United States | A.E. Brant | 3397 | MO | Tropicos | 953026 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Costa Rica | J.F. Morales & R.J. Abarca | 3715 | MO | Tropicos | 981753 | no |
| Ageratina ligustrina (DC.) R.M. King & H. Rob. | Costa Rica | J.F. Morales & V. Ureña | 3990 | MO | Tropicos | 982088 | no |
| Ageratina ligustrina (DC.) R.M. King & H. Rob. | Costa Rica | J.A. González R. | 603 | MO | Tropicos | 983076 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Costa Rica | J.A. González R. | 612 | MO | Tropicos | 983085 | no |
| Ageratina ixiocladon (Benth.) R.M. King & H. Rob. | Costa Rica | J.A. González R. | 647 | MO | Tropicos | 983120 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Colombia | James L. Zarucchi & Omar Escobar | 6897 | MO | Tropicos | 787752 | no |
| Ageratina azangaroensis (Sch. Bip. ex Wedd.) R.M. King & H. Rob. | Ecuador | Walter Palacios | 11771 | MO | Tropicos | 802986 | no |
| Ageratina anisochroma (Klatt) R.M. King & H. Rob. | Costa Rica | J.F. Morales, L.J. Poveda, Q. Jiménez & E. Lépiz | 1163 | MO | Tropicos | 906854 | no |
| Ageratina ligustrina (DC.) R.M. King & H. Rob. | Costa Rica | J.F. Morales | 1292 | MO | Tropicos | 907110 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Costa Rica | J.F. Morales | 1294 | MO | Tropicos | 907114 | no |
| Ageratina cutervensis (Hieron.) R.M. King & H. Rob. | Ecuador | P.M. Jørgensen, C. Ulloa, S. León, H. Vargas & P. Lozano | 782 | MO | Tropicos | 911803 | no |
| Ageratina exsertovenosa (Klatt) R.M. King & H. Rob. | Ecuador | P.M. Jørgensen, C. Ulloa, S. León, H. Vargas & P. Lozano | 895 | MO | Tropicos | 912140 | no |
| Ageratina Spach | Costa Rica | Victor Ramirez, L. Poveda & Q. Jiménez | 264 | MO | Tropicos | 905359 | no |
| Ageratina ixiocladon (Benth.) R.M. King & H. Rob. | Costa Rica | Victor Ramirez & Fco. Morales | 304 | MO | Tropicos | 905437 | no |
| Ageratina anisochroma (Klatt) R.M. King & H. Rob. | Costa Rica | Victor Ramirez & Fco. Morales | 303 | MO | Tropicos | 905435 | no |
| Ageratina scopulorum (Wedd.) R.M. King & H. Rob. | Bolivia, Plurinational State of | A. Jardim | 295 | MO | Tropicos | 937514 | no |
| Ageratina isolepis (B.L. Rob.) R.M. King & H. Rob. | Mexico | C.A. Purpus | 1496 | MO | Tropicos | 931254 | yes |
| Ageratina malacolepis (B.L. Rob.) R.M. King & H. Rob. | Mexico | Edward Palmer | 90 | MO | Tropicos | 931255 | yes |
| Ageratina vernalis (Vatke & Kurtz) R.M. King & H. Rob. | Mexico | Rogers McVaugh | 10097 | MO | Tropicos | 931252 | no |
| Ageratina glischra (B.L. Rob.) R.M. King & H. Rob. | Mexico | C.A. Purpus | 4655 | MO | Tropicos | 931253 | yes |
| Ageratina ligustrina (DC.) R.M. King & H. Rob. | Mexico | Scott Sundberg & Shai Reisfield | 3204 | MO | Tropicos | 931256 | no |
| Ageratina calophylla (Greene) R.M. King & H. Rob. | Mexico | Rafael Hernández Magaña | 4627 | MO | Tropicos | 931262 | no |
| Ageratina muelleri (Sch. Bip. ex Klatt) R.M. King & H. Rob. | Mexico | D.E. Breedlove | 41304 | MO | Tropicos | 931246 | no |
| Ageratina altissima var. altissima | United States | A.E. Brant, W.E. Seffens & R.W. Fenwick | 3536 | MO | Tropicos | 957908 | no |
| Ageratina sternbergiana (DC.) R.M. King & H. Rob. | Bolivia, Plurinational State of | A. Jardim & R. Abbott | 2099 | MO | Tropicos | 969177 | no |
| Ageratina glechonophylla (Less.) R.M. King & H. Rob. | Bolivia, Plurinational State of | B. Holst, L. Arroyo & M. Serrano | 4715 | MO | Tropicos | 966379 | no |
| Ageratina tenuis (R.E. Fr.) R.M. King & H. Rob. | Bolivia, Plurinational State of | B. Holst, L. Arroyo & M. Serrano | 4729 | MO | Tropicos | 966453 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Nicaragua | P.P. Moreno | 16356 | MO | Tropicos | 815317 | no |
| Ageratina Spach | Ecuador | J. Richard Abbott | 15054 | MO | Tropicos | 882047 | no |
| Ageratina anisochroma (Klatt) R.M. King & H. Rob. | Costa Rica | William Haber | 10993 | MO | Tropicos | 892643 | no |
| Ageratina ligustrina (DC.) R.M. King & H. Rob. | Costa Rica | Barry Hammel & Michael Garita | 19440 | MO | Tropicos | 893882 | no |
| Ageratina ixiocladon (Benth.) R.M. King & H. Rob. | Costa Rica | Barry Hammel, E. Lépiz, V.H. Ramírez & M. Garita | 19491 | MO | Tropicos | 894027 | no |
| Ageratina anisochroma (Klatt) R.M. King & H. Rob. | Costa Rica | William Haber | 10515 | MO | Tropicos | 891464 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Costa Rica | William Haber | 10572 | MO | Tropicos | 891576 | no |
| Ageratina anisochroma (Klatt) R.M. King & H. Rob. | Costa Rica | J. F. Morales & V.H. Ramírez | 2495 | MO | Tropicos | 888431 | no |
| Ageratina ixiocladon (Benth.) R.M. King & H. Rob. | Costa Rica | J. F. Morales & V.H. Ramírez | 2503 | MO | Tropicos | 888455 | no |
| Ageratina anisochroma (Klatt) R.M. King & H. Rob. | Costa Rica | J.F. Morales & M. Barrantes | 2586 | MO | Tropicos | 888652 | no |
| Ageratina reticulifera (Standl. & L.O. Williams) R.M. King & H. Rob. | Costa Rica | J.F. Morales | 2595 | MO | Tropicos | 888670 | no |
| Ageratina reticulifera (Standl. & L.O. Williams) R.M. King & H. Rob. | Costa Rica | J.F. Morales | 2596 | MO | Tropicos | 888672 | no |
| Ageratina pseudochilca (Benth.) R.M. King & H. Rob. | Ecuador | Walter Palacios | 11951 | MO | Tropicos | 919912 | no |
| Ageratina pseudochilca (Benth.) R.M. King & H. Rob. | Ecuador | Inés Padilla, E.Freire, G.Andrade, M.Reina, S.Vsquez | 3042 | MO | Tropicos | 918276 | no |
| Ageratina pseudochilca (Benth.) R.M. King & H. Rob. | Ecuador | Inés Padilla, E.Freire, G.Andrade, M.Reina, S.Vásquez | 3042 | MO | Tropicos | 995651 | no |
| Ageratina azangaroensis (Sch. Bip. ex Wedd.) R.M. King & H. Rob. | Ecuador | Walter Palacios | 11964 | MO | Tropicos | 995709 | no |
| Ageratina prunifolia (Kunth) R.M. King & H. Rob. | Ecuador | H.G. Barclay | 8483 | MO | Tropicos | 1277792 | no |
| Ageratina altissima (L.) R.M. King & H. Rob. | Unknown or unspecified country | Anonymous | s.n. | MO | Tropicos | 1271057 | no |
| Ageratina gracilis (Kunth) R.M. King & H. Rob. | Colombia | H.G. Barclay | 7216 | MO | Tropicos | 1271469 | yes |
| Ageratina latipes (Benth.) R.M. King & H. Rob. | Colombia | H.G. Barclay | 7608 | MO | Tropicos | 1275644 | yes |
| Ageratina mairetiana (DC.) R.M. King & H. Rob. | Mexico | D.E. Breedlove | 50806 | MO | Tropicos | 1353219 | no |
| Ageratina reticulifera (Standl. & L.O. Williams) R.M. King & H. Rob. | Costa Rica | Robert Merrill King, V.H. Castro & G. Mora V. | 10020 | MO | Tropicos | 1353222 | no |
| Ageratina prunellifolia (Kunth) R.M. King & H. Rob. | Guatemala | Antonio Molina R. | 21238 | MO | Tropicos | 1353221 | no |
| Ageratina allenii (Standl.) R.M. King & H. Rob. | Panama | Gene White & P. White | 118 | MO | Tropicos | 1353208 | yes |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Mexico | J.A. Soule, R. Day & E. Harris | 2133 | MO | Tropicos | 1353209 | no |
| Ageratina kupperi (Suess.) R.M. King & H. Rob. | Panama | Arthur S. Weston | 10171 | MO | Tropicos | 1353201 | no |
| Ageratina molinae R.M. King & H. Rob. | Panama | Paul H. Allen | 1543 | MO | Tropicos | 1353203 | no |
| Ageratina pichinchensis bustamenta (DC.) R.M. King & H. Rob. | Panama | W.G. D'Arcy & Barry E. Hammel | 12392 | MO | Tropicos | 1353206 | no |
| Ageratina ixiocladon (Benth.) R.M. King & H. Rob. | Panama | W. D'Arcy, B. Hammel, E.C. Hill, S. Schwartz, O. Wolcott & H. Wolcott | 13171 | MO | Tropicos | 1353194 | no |
| Ageratina croatii R.M. King & H. Rob. | Panama | Thomas B. Croat | 26432 | MO | Tropicos | 1353193 | yes |
| Ageratina ixiocladon (Benth.) R.M. King & H. Rob. | Panama | Barry Hammel | 2910 | MO | Tropicos | 1353196 | no |
| Ageratina anisochroma (Klatt) R.M. King & H. Rob. | Panama | Gene A. Sullivan | 318 | MO | Tropicos | 1353247 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Panama | Rachel J. Hampshire & Caroline Whitefoord | 460 | MO | Tropicos | 1353250 | no |
| Ageratina bustamenta (DC.) R.M. King & H. Rob. | Panama | Thomas M. Antonio | 1661 | MO | Tropicos | 1353252 | no |
| Ageratina mairetiana (DC.) R.M. King & H. Rob. | Mexico | Thomas B. Croat | 47581 | MO | Tropicos | 1353254 | no |
| Ageratina ligustrina (DC.) R.M. King & H. Rob. | Mexico | Scott Sundberg, M. Lavin, L. Hardison, A. Whittemore & K. Bear | 2455 | MO | Tropicos | 1353253 | no |
| Ageratina vernalis (Vatke & Kurtz) R.M. King & H. Rob. | Mexico | D.E. Breedlove | 50053 | MO | Tropicos | 1353240 | no |
| Ageratina Spach | Costa Rica | R.K. Godfrey | 66776 | MO | Tropicos | 1353241 | no |
| Ageratina zunilana (Standl. & Steyerm.) R.M. King & H. Rob. | Mexico | D.E. Breedlove & R.F. Thorne | 31154 | MO | Tropicos | 1353243 | no |
| Ageratina allenii (Standl.) R.M. King & H. Rob. | Panama | W. D'Arcy, B. Hammel, E.C. Hill, S. Schwartz, O. Wolcott & H. Wolcott | 12819 | MO | Tropicos | 1353246 | no |
| Ageratina zunilana (Standl. & Steyerm.) R.M. King & H. Rob. | Mexico | D.E. Breedlove & B. Bartholomew | 55832 | MO | Tropicos | 1353234 | yes |
| Ageratina tomentella (Schrad.) R.M. King & H. Rob. | Mexico | D.E. Breedlove & R.F. Thorne | 30508 | MO | Tropicos | 1353236 | no |
| Ageratina rivalis (Greenm.) R.M. King & H. Rob. | Mexico | Thomas B. Croat | 47378 | MO | Tropicos | 1353235 | no |
| Ageratina tonduzii (Klatt) R.M. King & H. Rob. | Costa Rica | Alexander F. Skutch | 4200 | MO | Tropicos | 1353238 | no |
| Ageratina salvadorensis R.M. King & H. Rob. | El Salvador | Paul H. Allen & Robert Armour | 7284 | MO | Tropicos | 1353224 | no |
| Ageratina subcordata (Benth.) R.M. King & H. Rob. | Costa Rica | W.D. Stevens | 14293 | MO | Tropicos | 1353226 | no |
| Ageratina subinclusa (Klatt) R.M. King & H. Rob. | Mexico | D.E. Breedlove | 41401 | MO | Tropicos | 1353227 | no |
| Ageratina subinclusa (Klatt) R.M. King & H. Rob. | Guatemala | Antonio Molina R., Albertina R. Molina & Jorge A. Molina | 31346 | MO | Tropicos | 1353229 | no |
| Ageratina pichinchensis bustamenta (DC.) R.M. King & H. Rob. | Costa Rica | Khan, Tebbs & Vickery | 1292 | MO | Tropicos | 1353264 | no |
| Ageratina pichinchensis bustamenta (DC.) R.M. King & H. Rob. | Honduras | Darío Mejía | 265 | MO | Tropicos | 1353263 | no |
| Ageratina mairetiana (DC.) R.M. King & H. Rob. | Guatemala | Robert Merrill King | 7274 | MO | Tropicos | 1353255 | no |
| Ageratina ovilla (Standl. & Steyerm.) R.M. King & H. Rob. | Mexico | Dennis E. Breedlove & A.R. Smith | 31728 | MO | Tropicos | 1353258 | no |
| Ageratina Spach | Mexico | José García P. | 581 | MO | Tropicos | 1353257 | no |
| Ageratina atrocordata (B.L. Rob.) R.M. King & H. Rob. | Mexico | Scott Sundberg, L. Hardison, M. Lavin, A. Whiteemore & K. Bear | 2383 | MO | Tropicos | 1353260 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Mexico | Alush Méndez Ton (Alush Shilom Ton) | 5565 | MO | Tropicos | 1353262 | no |
| Ageratina pichinchensis bustamenta (DC.) R.M. King & H. Rob. | El Salvador | R. Villacorta & M. Cortez | 2012 | MO | Tropicos | 1353261 | no |
| Ageratina vernalis (Vatke & Kurtz) R.M. King & H. Rob. | Mexico | D.E. Breedlove & A.R. Smith | 31644 | MO | Tropicos | 1353664 | no |
| Ageratina conspicua R.M. King & H. Rob. | Mexico | Alush Méndez Ton (Alush Shilom Ton) | 5801 | MO | Tropicos | 1353667 | no |
| Ageratina pazcuarensis (Kunth) R.M. King & H. Rob. | Mexico | D.E. Breedlove | 29396 | MO | Tropicos | 1353666 | no |
| Ageratina conspicua R.M. King & H. Rob. | Guatemala | E. Martínez S., A. Márquez, G. Urquijo & M. Ramírez | 19567 | MO | Tropicos | 1353670 | no |
| Ageratina bustamenta (DC.) R.M. King & H. Rob. | Costa Rica | R.L. Wilbur & D.E. Stone | 9980 | MO | Tropicos | 1353656 | no |
| Ageratina ligustrina (DC.) R.M. King & H. Rob. | Mexico | D.E. Breedlove & A.R. Smith | 31841 | MO | Tropicos | 1353659 | yes |
| Ageratina capillipes R.M. King & H. Rob. | Mexico | J.A. Soule & L.A. Prather | 3099 | MO | Tropicos | 1353661 | no |
| Ageratina bustamenta (DC.) R.M. King & H. Rob. | Honduras | Thelma María Mejía Ordóñez | 137 | MO | Tropicos | 1353648 | no |
| Ageratina bustamenta (DC.) R.M. King & H. Rob. | Mexico | D.E. Breedlove | 58499 | MO | Tropicos | 1353653 | no |
| Ageratina burgeri R.M. King & H. Rob. | Costa Rica | A. Molina R., L.O. Williams, W.C. Burger & B. Wallenta | 17782 | MO | Tropicos | 1353643 | yes |
| Ageratina anisochroma (Klatt) R.M. King & H. Rob. | Costa Rica | L. D. Gómez | 19896 | MO | Tropicos | 1353697 | no |
| Ageratina anisochroma (Klatt) R.M. King & H. Rob. | Costa Rica | William C. Burger & J.L. Gentry, Jr. | 8729 | MO | Tropicos | 1353700 | no |
| Ageratina ligustrina (DC.) R.M. King & H. Rob. | Guatemala | Robert Merrill King | 7276 | MO | Tropicos | 1353690 | no |
| Ageratina ligustrina (DC.) R.M. King & H. Rob. | Honduras | Paul R. House | 1122 | MO | Tropicos | 1353692 | no |
| Ageratina ligustrina (DC.) R.M. King & H. Rob. | Costa Rica | Arthur S. Weston, D.F. Weston & J. Weston | 4119 | MO | Tropicos | 1353694 | no |
| Ageratina atrocordata (B.L. Rob.) R.M. King & H. Rob. | Guatemala | F.R. Fosberg | 27263 | MO | Tropicos | 1353680 | yes |
| Ageratina ixiocladon (Benth.) R.M. King & H. Rob. | Costa Rica | N. Garwood, M. Gibby, R.J. Hampshire & C.J. Humphries | 1236 | MO | Tropicos | 1353683 | no |
| Ageratina intibucensis R.M. King & H. Rob. | Honduras | Antonio Molina R. & Albertina R. Molina | 25542 | MO | Tropicos | 1353682 | no |
| Ageratina costaricensis R.M. King & H. Rob. | Costa Rica | L. D. Gómez | 19910A | MO | Tropicos | 1353672 | no |
| Ageratina crassiramea (B.L. Rob.) R.M. King & H. Rob. | Mexico | D.E. Breedlove & E. McClintock | 34047 | MO | Tropicos | 1353674 | no |
| Ageratina badia (Klatt) R.M. King & H. Rob. | Costa Rica | H. Pittier | 3407 | MO | Tropicos | 1353720 | no |
| Ageratina aschenborniana (S. Schauer) R.M. King & H. Rob. | Guatemala | Robert Merrill King | 7211 | MO | Tropicos | 1353713 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Costa Rica | Oswaldo Téllez V., H. Brailowski, J. Bueno & E. Barrera | 4403 | MO | Tropicos | 1353712 | no |
| Ageratina atrocordata (B.L. Rob.) R.M. King & H. Rob. | Mexico | Thomas B. Croat | 47259 | MO | Tropicos | 1353716 | no |
| Ageratina austin-smithii R.M. King & H. Rob. | Costa Rica | Austin Smith | P2242 | MO | Tropicos | 1353718 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Mexico | D.E. Breedlove | 24153 | MO | Tropicos | 1353710 | no |
| Ageratina molinae R.M. King & H. Rob. | Honduras | Paul House | 865 | MO | Tropicos | 1354033 | no |
| Ageratina ixiocladon (Benth.) R.M. King & H. Rob. | Panama | J.P. Folsom & Richard Page | 6085 | MO | Tropicos | 1352917 | no |
| Ageratina azangaroensis (Sch. Bip. ex Wedd.) R.M. King & H. Rob. | Peru | Al Gentry | 21662 | MO | Tropicos | 1352910 | no |
| Ageratina sternbergiana (DC.) R.M. King & H. Rob. | Peru | Al Gentry | 21667 | MO | Tropicos | 1352914 | no |
| Ageratina anisochroma (Klatt) R.M. King & H. Rob. | Costa Rica | Cano | 179 | MO | Tropicos | 1363474 | no |
| Ageratina sternbergiana (DC.) R.M. King & H. Rob. | Peru | A. Gentry, M. Dillon, J. Aronson & C. Diaz | 23132 | MO | Tropicos | 1373062 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Peru | A. Gentry, M. Dillon, J. Aronson & C. Diaz | 23175 | MO | Tropicos | 1373851 | no |
| Ageratina exsertovenosa (Klatt) R.M. King & H. Rob. | Peru | A. Gentry, M. Dillon, J. Aronson & C. Diaz | 23196 | MO | Tropicos | 1373882 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Peru | A. Gentry, M. Dillon, J. Aronson & C. Diaz | 23195 | MO | Tropicos | 1373878 | no |
| Ageratina kupperi (Suess.) R.M. King & H. Rob. | Costa Rica | B. Gamboa R. & A. Picado | 910 | MO | Tropicos | 1261602 | no |
| Ageratina subcordata (Benth.) R.M. King & H. Rob. | Costa Rica | Billen Gamboa R. | 947 | MO | Tropicos | 1261643 | no |
| Ageratina ligustrina (DC.) R.M. King & H. Rob. | El Salvador | Gerrit Davidse, Alex Monro, Karen Sidwell, Hector Martínez & Carlos Salazar | 37204 | MO | Tropicos | 1255816 | no |
| Ageratina Spach | Costa Rica | J.F. Morales | 6051 | MO | Tropicos | 1256532 | no |
| Ageratina Spach | Venezuela, Bolivarian Republic of | H.G. Barclay | 10057 | MO | Tropicos | 1284693 | no |
| Ageratina anchistea (Grashoff & Beaman) R.M. King & H. Rob. | Nicaragua | W.D. Stevens & A. Grijalva | 16151 | MO | Tropicos | 1342338 | no |
| Ageratina Spach | Mexico | J.A. Soule & L.A. Prather | 2964 | MO | Tropicos | 1354222 | no |
| Ageratina anisochroma (Klatt) R.M. King & H. Rob. | Panama | W.G. D'Arcy, Barry E. Hammel, E.C. Hill, S. Schwartz, O. Wolcott & H. Wolcott | 12953 | MO | Tropicos | 1354360 | no |
| Ageratina sternbergiana (DC.) R.M. King & H. Rob. | Peru | A. Gentry | 23374 | MO | Tropicos | 1381603 | yes |
| Ageratina sternbergiana (DC.) R.M. King & H. Rob. | Peru | A. Gentry | 23417 | MO | Tropicos | 1381680 | no |
| Ageratina ligustrina (DC.) R.M. King & H. Rob. | Guatemala | Robert Merrill King & Richard C. Renner | 7066 | MO | Tropicos | 1391551 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Nicaragua | W.D. Stevens, P.P. Moreno, M. Araquistain & D. Castro C. | 16950 | MO | Tropicos | 1406731 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Nicaragua | W.D. Stevens, P.P. Moreno, M. Araquistain & D. Castro C. | 16972 | MO | Tropicos | 1407788 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Ecuador | Tania Delgado & Grupo Post-Grado MO-QCNE | 24 | MO | Tropicos | 1426358 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Peru | R. Vásquez & J.Campos | 25321 | MO | Tropicos | 1433165 | no |
| Ageratina tambillensis (Hieron.) R.M. King & H. Rob. | Peru | R. Vásquez & J.Campos | 25334 | MO | Tropicos | 1433178 | yes |
| Ageratina crassiramea (B.L. Rob.) R.M. King & H. Rob. | Nicaragua | D.A. Neill | 1385 | MO | Tropicos | 1477575 | no |
| Ageratina ligustrina (DC.) R.M. King & H. Rob. | Mexico | Thomas B. Croat | 46621 | MO | Tropicos | 1485200 | no |
| Ageratina parviceps H. Rob. | Ecuador | Bibiana Cuamacás & Edgar Gudiño | 462 | MO | Tropicos | 1485605 | no |
| Ageratina parviceps H. Rob. | Ecuador | Bibiana Cuamacás & Edgar Gudiño | 524 | MO | Tropicos | 1485667 | no |
| Ageratina pseudochilca (Benth.) R.M. King & H. Rob. | Ecuador | Bibiana Cuamacás, E. & D. Gudiño | 596 | MO | Tropicos | 1485781 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Ecuador | Bibiana Cuamacás & E. Gudiño | 646 | MO | Tropicos | 1485831 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Ecuador | Bibiana Cuamacás & E. Gudiño | 344 | MO | Tropicos | 1486031 | no |
| Ageratina pichinchensis bustamenta (DC.) R.M. King & H. Rob. | Nicaragua | W.D. Stevens, P.P. Moreno, M. Araquistain & D. Castro C. | 17059 | MO | Tropicos | 1493053 | no |
| Ageratina pichinchensis (Kunth) R.M. King & H. Rob. | Nicaragua | R.M. Rueda, L.D. Paguaga & D. Cruz | 13302 | MO | Tropicos | 1495312 | no |