| Name | Lupinus arbustus subsp. pseudoparviflorus (Rydberg) D. B. Dunn |
| Authorship | (Rydberg) D. B. Dunn |
| Rank | Subspecies |
| Placed in | Lupinus arbustus Douglas |
| Citation | 1955 Leafl. W. Bot. 7(1): 255 |
| Holdings | 29 Specimens held in the Harvard University Herbaria identified as Lupinus arbustus subsp. pseudoparviflorus (Rydberg) D. B. Dunn |
| Identification made in | [no date] (29) |