| Name | Lupinus breweri var. grandiflorus C. P. Smith |
| Authorship | C. P. Smith |
| Rank | Variety |
| Placed in | Lupinus breweri A. Gray |
| Holdings | 8 Specimens held in the Harvard University Herbaria identified as Lupinus breweri var. grandiflorus C. P. Smith |
| Identification made in | [no date] (7), 1951 (1) |