Actinospermum uniflorum Barnh. (original description)
Artemisia arachnoidea Sheldon (original description)
Aster mucronatus Sheldon (original description)
Aster umbraticus Sheldon (original description)
Bidens nashii Wooton accepted as Bidens laevis (L.) Britton, Sterns & Poggenb. (original description)
Crepis atrabarba A.Heller (original description)
Crepis klikitatensis Suksd. ex Piper (original description)
Hymenoxys canescens Cock. (original description)
Hymenoxys cooperi Cock. (original description)
Hymenoxys davidsonii Cock. (original description)
Hymenoxys earlei Cock. (original description)
Hymenoxys floribunda Cock. (original description)
Hymenoxys helenioides Cock. (original description)
Hymenoxys latissima Cock. (original description)
Hymenoxys lemmonii Cock. (original description)
Hymenoxys olivacea Cock. (original description)
Hymenoxys richardsonii Cock. (original description)
Hymenoxys rusbyi Cock. (original description)
Hymenoxys subintegra Cock. (original description)
Hymenoxys texana Cock. (original description)
Hymenoxys vaseyi Cock. (original description)
Kuhnia kuhnia (Gaertn.) Mohr accepted as Brickellia eupatorioides (L.) Shinners (original description)
Plateilema (A.Gray) Cockerell (original description)
Ratibida peduncularis Bamh. (original description)
Ratibida pinnata Barnh. (original description)
Ratibida tagetes Barnh. (original description)
Senecio nelsonii Rydb. ex A.Nelson (original description)
Sideranthus grindelioides (Nutt.) Britton ex Rydb. accepted as Xanthisma grindelioides (Nutt.) D.R.Morgan & R.L.Hartm. (original description)
Sideranthus rubiginosus (Torr. & A.Gray) Britton ex Rydb. accepted as Haplopappus rubiginosus Torr. & A.Gray (original description)
Stenotopsis Rydb. accepted as Ericameria Nutt. (original description)