Achaetogeron ascendens Greenm. accepted as Erigeron janivultus G.L.Nesom (original description)
Achaetogeron griseus Greenm. accepted as Erigeron griseus (Greenm.) G.L.Nesom (original description)
Achaetogeron versicolor Greenm. accepted as Erigeron versicolor (Greenm.) G.L.Nesom (original description)
Ageratella palmeri (A.Gray) B.L.Rob. (original description)
Baccharis palmeri Greenm. (original description)
Baccharis pringlei Greenm. accepted as Archibaccharis pringlei (Greenm.) S.F.Blake (original description)
Bidens pringlei Greenm. (original description)
Bidens rosea var. calcicola Greenm. accepted as Bidens pilosa L. (original description)
Bidens sarmentosa Greenm. accepted as Bidens anthemoides (DC.) Sherff (original description)
Cirsium pinetorum Greenm. (original description)
Cosmos ocellatus Greenm. accepted as Bidens ocellatus (Greenm.) Melchert (original description)
Erigeron alcicornutus Greenm. accepted as Erigeron inoptatus A.Gray (original description)
Erigeron calcicola Greenm. (original description)
Erigeron morelensis Greenm. (original description)
Erigeron oaxacanus Greenm. (original description)
Erigeron oreophilus Greenm. (original description)
Erigeron oreophilus f. latilobus Greenm. accepted as Erigeron oreophilus Ridl. (original description)
Erigeron oreophilus f. tenuilobus Greenm. accepted as Erigeron oreophilus Ridl. (original description)
Erigeron oreophilus var. dactyloides Greenm. accepted as Erigeron dactyloides (Greenm.) G.L.Nesom (original description)
Erigeron repens var. psammophilus Greenm. (original description)
Eupatoriastrum nelsonii var. cardiophyllum B.L.Rob. & Greenm. accepted as Eupatoriastrum nelsonii Greenm. (original description)
Eupatorium chrysostylum B.L.Rob. accepted as Flyriella chrysostyla (B.L.Rob.) R.M.King & H.Rob. (original description)
Eupatorium leucoderme B.L.Rob. accepted as Koanophyllon albicaulis var. laxius B.L.Rob. (original description)
Eupatorium lozanoanum B.L.Rob. accepted as Critonia lozanoana (B.L.Rob.) R.M.King & H.Rob. (original description)
Eupatorium michelianum B.L.Rob. accepted as Chromolaena glaberrima (DC.) R.M.King & H.Rob. (original description)
Eupatorium petraeum B.L.Rob. accepted as Decachaeta ovatifolia (DC.) R.M.King & H.Rob. (original description)
Eutetras pringlei Greenm. (original description)
Fleischmannia langlassei B.L.Rob. accepted as Hofmeisteria urenifolia (Hook. & Arn.) Walp. (original description)
Jungia dentata B.L.Rob. (original description)
Jungia revoluta B.L.Rob. (original description)
Melampodium nelsonii Greenm. accepted as Melampodium americanum L. (original description)
Onoseris conspicua (Turcz.) Greenm. (original description)
Onoseris rupestris (Benth.) Greenm. (original description)
Ophryosporus venosissimus (Rusby) B.L.Rob. (original description)
Oxylobus adscendens (Sch.Bip. ex Hemsl.) B.L.Rob. & Greenm. (original description)
Perezia lozani Greenm. (original description)
Perezia lozanii Greenm. accepted as Acourtia lozanii (Greenm.) Reveal & R.M.King (original description)
Perezia megacephala (A.Gray) Greenm. accepted as Acourtia wislizeni (A.Gray) Reveal & R.M.King (original description)
Perymenium flexuosum Greenm. (original description)
Piptothrix aegiroides B.L.Rob. accepted as Jaliscoa goldmanii (B.L.Rob.) R.M.King & H.Rob. (original description)
Rumfordia floribunda f. pubescens Greenm. (original description)
Sabazia anomala Greenm. (original description)
Sanvitaliopsis nelsonii (Greenm.) Greenm. accepted as Philactis nelsonii (Greenm.) S.F.Blake (original description)
Trixis megalophylla Greenm. (original description)
Trixis nelsonii Greenm. (original description)
Zexmenia ceanothifolia var. conferta (DC.) A.Gray (original description)
Zexmenia foliosa Rusby ex Jones (original description)
Zexmenia gracilis Jones (original description)
Zexmenia gracilis W.W.Jones accepted as Lasianthaea ceanothifolia var. gracilis (W.W.Jones) K.M.Becker (original description)
Zexmenia palmeri Greenm. accepted as Lasianthaea palmeri (Greenm.) K.M.Becker (original description)
Zexmenia palmeri Greenm. ex Jones (original description)
Zexmenia pittieri Greenm. ex Jones (original description)
Zexmenia pittieri Greenm. accepted as Tuxtla pittieri (Greenm.) Villaseñor & Strother (original description)
Zexmenia squarrosa Greenm. (original description)
Zexmenia squarrosa Greenm. ex Jones (original description)
Zexmenia xylopoda Jones (original description)
Zexmenia xylopoda W.W.Jones accepted as Lasianthaea palmeri (Greenm.) K.M.Becker (original description)