Picradenia acaulis (Pursh) Britton | Tetraneuris acaulis (Pursh) Greene trib. Helenieae |
Picradenia helenioides Rydb. | Hymenoxys helenioides (Rydb.) Cockerell trib. Helenieae |
Picradenia lemmonii Greene | Hymenoxys lemmonii (Greene) Cockerell trib. Helenieae |
Picradenia richardsonii Hook. | Hymenoxys richardsonii (Hook.) Cockerell trib. Helenieae |
Picradenia rusbyi (A.Gray) Greene | Hymenoxys rusbyi (A.Gray) Cockerell trib. Helenieae |
Picradenia scaposa (DC.) Britton | Tetraneuris scaposa (DC.) Greene trib. Helenieae |
Picradenia vaseyi (A.Gray) Greene | Hymenoxys vaseyi (A.Gray) Cockerell trib. Helenieae |