| Name | Lupinus densiflorus var. mcgregori C. P. Smith |
| Authorship | C. P. Smith |
| Rank | Variety |
| NomenclaturalStatus | NomLeg |
| Placed in | Lupinus densiflorus Bentham |
| Citation | 1918 Bull. Torrey Bot. Club 45: 183 |
| Holdings | 3 Specimens held in the Harvard University Herbaria identified as Lupinus densiflorus var. mcgregori C. P. Smith |
| Identification made in | [no date] (1), 1937 (1), 1989 (1) |