| Name | Plagiobothrys collinus var. gracilis (I. M. Johnston) L. C. Higgins |
| Authorship | (I. M. Johnston) L. C. Higgins |
| Rank | Variety |
| Placed in | Plagiobothrys collinus (Philippi) I. M. Johnston |
| Citation | 1974 Great Basin Naturalist 34: 164 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Plagiobothrys collinus var. gracilis (I. M. Johnston) L. C. Higgins |
| Identification made in | [no date] (1) |