| Name | Plagiobothrys diffusus (Greene) I. M. Johnstone |
| Authorship | (Greene) I. M. Johnstone |
| Rank | Species |
| NomenclaturalStatus | Unknown |
| Placed in | Plagiobothrys |
| GUID | urn:lsid:ipni.org:names:201044-2 |
| Holdings | 11 Specimens held in the Harvard University Herbaria identified as Plagiobothrys diffusus (Greene) I. M. Johnstone |
| Identification made in | [no date] (6), 1972 (4), 1973 (1) |