Achaetogeron affinis A.Gray accepted as Erigeron fraternus Greene (original description)
Achaetogeron palmeri A.Gray accepted as Erigeron strigulosus Greene (original description)
Achaetogeron pinnatifidus A.Gray accepted as Erigeron wislizeni (A.Gray) Greene (original description)
Artemisia pygmaea A.Gray (original description)
Artemisia redolens A.Gray accepted as Artemisia ludoviciana subsp. redolens (A.Gray) D.D.Keck (original description)
Bidens ludens A.Gray accepted as Bidens ferulifolia (Jacq.) Sweet (original description)
Brickellia brachiata A.Gray (original description)
Brickellia glutinosa A.Gray (original description)
Dimeresia A.Gray (original description)
Dimeresia howellii A.Gray (original description)
Erigeron inoptatus A.Gray (original description)
Eupatorium microcephalum A.Gray accepted as Decachaeta scabrella (B.L.Rob.) R.M.King & H.Rob. (original description)
Eupatorium microphyllum A.Gray (original description)
Eupatorium palmeri A.Gray accepted as Koanophyllon palmeri (A.Gray) R.M.King & H.Rob. (original description)
Eupatorium strictum A.Gray accepted as Ageratina stricta (A.Gray) R.M.King & H.Rob. (original description)
Eupatorium venulosum A.Gray accepted as Ageratina venulosa (A.Gray) R.M.King & H.Rob. (original description)
Gnaphalium pringlei A.Gray accepted as Pseudognaphalium pringlei (A.Gray) Anderb. (original description)
Haplopappus tenuilobus A.Gray (original description)
Helianthella pringlei A.Gray accepted as Flourensia pringlei (A.Gray) S.F.Blake (original description)
Helianthella pringlei S.Watson (original description)
Helianthus cusickii A.Gray (original description)
Hymenothrix palmeri A.Gray (original description)
Lessingia lemmonii A.Gray accepted as Lessingia glandulifera var. glandulifera A.Gray (original description)
Montanoa patens A.Gray accepted as Montanoa leucantha var. arborescens (DC.) B.L.Turner (original description)
Pectis berlandieri var. palmeri A.Gray accepted as Pectis uniaristata var. uniaristata DC. (original description)
Pectis stenophylla A.Gray (original description)
Perezia paniculata A.Gray accepted as Vernonanthura serratuloides (Kunth) H.Rob. accepted as Vernonia serratuloides Kunth accepted as Vernonanthura serratuloides (Kunth) H.Rob. (original description)
Perityle microcephala A.Gray (original description)
Piptothrix A.Gray (original description)
Stevia madrensis A.Gray accepted as Stevia plummerae A.Gray (original description)
Stevia palmeri A.Gray accepted as Stevia constricta (Grashoff) Soejima, Yahara & K.Watan. (original description)
Stevia venosa A.Gray (original description)
Tagetes palmeri A.Gray (original description)
Tragoceros mocinianus A.Gray accepted as Zinnia americana (Mill.) Olorode & A.M.Torres (original description)
Tridax erecta A.Gray (original description)
Tridax leptophylla A.Gray accepted as Tridax balbisioides (Kunth) A.Gray (original description)
Verbesina chihuahuensis A.Gray (original description)
Verbesina leptochaeta A.Gray (original description)
Zaluzania discoidea A.Gray (original description)