| Name | Lupinus caespitosus var. caespitosus |
| Authorship | |
| Rank | Variety |
| Placed in | Lupinus caespitosus Nuttall ex Torrey & A. Gray |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Lupinus caespitosus var. caespitosus |
| Identification made in | 1972 (2) |