| Name | Lupinus arizonicus var. barbatulus I. M. Johnston |
| Authorship | I. M. Johnston |
| Rank | Variety |
| Placed in | Lupinus arizonicus (S. Watson) S. Watson |
| Citation | 1924 Proc. Calif. Acad. Sci. ser. 4, 12: 1045 |
| Holdings | 7 Specimens held in the Harvard University Herbaria identified as Lupinus arizonicus var. barbatulus I. M. Johnston |
| Identification made in | [no date] (5), 1969 (2) |
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