Aster divaricatus var. tenebrosus (E.S.Burgess) R.J.Eaton & Griscom accepted as Symphyotrichum subulatum var. ligulatum (Shinners) S.D.Sundb. (original description)
Aster foliaceus var. sublinearis Griscom & R.J.Eaton accepted as Symphyotrichum novi-belgii var. novi-belgii (L.) (original description)
Aster linariifolius f. leucactis Benke accepted as Ionactis linariifolia (L.) Greene (original description)
Aster pilosus f. pulchellus Benke accepted as Symphyotrichum pilosum (Willd.) G.L.Nesom (original description)
Bidens heterodoxa var. atheistica Fernald accepted as Bidens heterodoxa (Fernald) Fernald & H.St.John (original description)
Boltonia asteroides f. rosea Benke accepted as Boltonia asteroides (L.) L'Hér. (original description)
Erigeron thompsonii S.F.Blake (original description)
Polymnia canadensis f. radiata (A.Gray) Fassett accepted as Polymnia canadensis L. (original description)
Silphium integrifolium var. mesochorum Benke (original description)