Aster ascendens Lindl. (original description)
Aster falcatus Lindl. accepted as Symphyotrichum falcatum (Lindl. ex Lindl.) G.L.Nesom (original description)
Aster laxifolius Lindl. (original description)
Aster menziesii Hook. (original description)
Aster modestus Lindl. accepted as Canadanthus modestus (Lindl.) G.L.Nesom (original description)
Aster praecox Lindl. accepted as Symphyotrichum ciliolatum (Lindl.) Á.Löve & D.Löve (original description)
Aster pygmaeus Lindl. accepted as Symphyotrichum pygmaeum (Lindl.) Brouillet & Selliah (original description)
Aster ramulosus Lindl. accepted as Symphyotrichum falcatum var. falcatum (Lindl.) G.L.Nesom (original description)
Aster richardsonii var. giganteus Hook. accepted as Eurybia sibirica (L.) G.L.Nesom (original description)
Aster salsuginosus Hook. accepted as Erigeron peregrinus (Banks ex Pursh) Greene (original description)
Aster shortii Lindl. accepted as Symphyotrichum shortii (Lindl.) G.L.Nesom (original description)
Aster shortii Lindl. ex Hook. (original description)
Aster spathulatus Lindl. accepted as Symphyotrichum spathulatum (Lindl.) G.L.Nesom (original description)
Crinitaria humilis Hook. accepted as Symphyotrichum novi-belgii (L.) G.L.Nesom (original description)
Crinitaria viscidiflora Hook. accepted as Chrysothamnus viscidiflorus (Hook.) Nutt. (original description)
Diplopappus amygdalinus (Lam.) Hook. accepted as Aster umbellatus Mill. accepted as Doellingeria umbellata (Mill.) Nees (original description)
Diplopappus filifolius Hook. accepted as Erigeron filifolius (Hook.) Nutt. (original description)
Diplopappus grandiflorus Hook. accepted as Erigeron caespitosus Nutt. (original description)
Diplopappus hispidus Gillies ex Hook. accepted as Hysterionica jasionoides Willd. (original description)
Diplopappus pinnatifidus Hook. accepted as Xanthisma spinulosum (Pursh) D.R.Morgan & R.L.Hartm. (original description)
Diplopappus scaber (Pursh) Hook. accepted as Heterotheca subaxillaris subsp. subaxillaris (original description)
Diplopappus umbellatus (Mill.) Hook. accepted as Doellingeria umbellata (Mill.) Nees (original description)
Diplopappus villosus (Pursh) Hook. (original description)
Donia glutinosa Hook. accepted as Grindelia hirsutula Hook. & Arn. (original description)
Donia inuloides Hook. accepted as Grindelia inuloides Willd. (original description)
Donia lanceolata Hook. accepted as Pyrrocoma lanceolata (Hook.) Greene (original description)
Donia uniflora Hook. accepted as Pyrrocoma uniflora (Hook.) Greene (original description)
Erigeron florifer Hook. accepted as Townsendia florifer (Hook.) A.Gray (original description)
Erigeron glabellus var. pubescens Hook. (original description)
Erigeron glabratus Hook. accepted as Erigeron acer L. (original description)
Erigeron glabratus var. minor Hook. (original description)
Erigeron grandiflorus Hook. (original description)
Erigeron lanatus Hook. (original description)
Erigeron lonchophyllus Hook. (original description)
Erigeron pulchellus Hook. (original description)
Erigeron radicatus Hook. (original description)
Erigeron trifidus Hook. (original description)
Eupatorium grandiflorum Hook. accepted as Brickellia grandiflora (Hook.) Nutt. (original description)
Galatella graminifolia (Pursh) Hook. accepted as Nidorella foetida (L.) DC. (original description)
Galatella nemoralis Hook. accepted as Nidorella foetida (L.) DC. (original description)
Madia glomerata Hook. (original description)
Sericocarpus rigidus Lindl. (original description)
Solidago elata Hook. (original description)
Solidago lanata Hook. accepted as Solidago hispida Muhl. ex Willd. (original description)
Solidago serotina var. minor Hook. (original description)
Solidago stricta Hook. (original description)
Townsendia Hook. (original description)
Tripolium angustum Lindl. (original description)