| Psoralea rhombifolia Torr. & A. Gray, 1838 |
| Psoralea rigida Parish, 1892 |
| Psoralea rydbergii Cory, 1936 |
| Psoralea scandens Mill., 1768 |
| Psoralea tenuiflora Pursh, 1813 |
| Psoraleeae Benth., 1859 |
| Psoralidium Rydb., 1919 |
| Psoralidium tenuiflorum (Pursh) Rydb., 1919 |
| Psorothamnus Rydb., 1919 |
| Psorothamnus arborescens (Torr. ex A. Gray) Barneby, 1977 |
| Psorothamnus arborescens var. arborescens (Torr. ex A. Gray) Barneby, 1977 |
| Psorothamnus dentatus Rydb., 1919 |
| Psorothamnus emoryi (A. Gray) Rydb., 1919 |
| Psorothamnus emoryi var. arenarius (Brandegee) Barneby, 1977 |
| Psorothamnus emoryi var. emoryi (A. Gray) Rydb., 1919 |
| Psorothamnus schottii (Torr.) Barneby, 1977 |
| Psorothamnus scoparius (A. Gray) Rydb., 1919 |
| Psorothamnus spinosus (A. Gray) Barneby, 1977 |
| Pterocarpus Jacq., 1763 |
| Pterocarpus acapulcensis Rose, 1897 |