| Name | Lupinus sparsiflorus var. arizonicus (S. Watson) C. P. Smith |
| Authorship | (S. Watson) C. P. Smith |
| Rank | Variety |
| Placed in | Lupinus sparsiflorus Bentham |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Lupinus sparsiflorus var. arizonicus (S. Watson) C. P. Smith |
| Identification made in | 1928 (1) |
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