| Name | Lupinus caudatus var. subtenellus C. P. Smith |
| Authorship | C. P. Smith |
| Rank | Variety |
| Placed in | Lupinus caudatus Kellogg |
| GUID | urn:lsid:ipni.org:names:144968-2 |
| Citation | 1924 Bull. Torrey Bot. Club 51: 304 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Lupinus caudatus var. subtenellus C. P. Smith |
| Identification made in | [no date] (1), 1928 (1) |