| Name | Clarkia lassenensis (Eastwood) F. H. Lewis & M. E. Lewis |
| Authorship | (Eastwood) F. H. Lewis & Marg. E. Lewis |
| Rank | Species |
| Placed in | Clarkia Pursh |
| Citation | 1953 MadroƱo 12(2): 33 |
| Holdings | 3 Specimens held in the Harvard University Herbaria identified as Clarkia lassenensis (Eastwood) F. H. Lewis & M. E. Lewis |
| Identification made in | [no date] (3) |