| Fabaceae | |
Lupinus subvexus var. albilanatus
| C.P. Sm. | Bull. Torrey Bot. Club 45(1): 19–20, f. 14 | 1918 |
| Fabaceae | |
Lupinus subvexus var. barbatissimus
| (C.P. Sm.) C.P. Sm. | Sp. Lupinorum 13: 195 | 1940 |
| Fabaceae | |
Lupinus subvexus var. fluviatilis
| C.P. Sm. | Bull. Torrey Bot. Club 45(1): 14–15, f. 9 | 1918 |
| Fabaceae | |
Lupinus subvexus var. insularis
| C.P. Sm. | Bull. Torrey Bot. Club 45(1): 17, f. 12 | 1918 |
| Fabaceae | |
Lupinus subvexus var. leibergii
| C.P. Sm. | Bull. Torrey Bot. Club 45(1): 16–17, f. 11 | 1918 |
| Fabaceae | |
Lupinus subvexus var. nigrescens
| C.P. Sm. | Bull. Torrey Bot. Club 45(1): 13–14, f. 8 | 1918 |
| Fabaceae | |
Lupinus subvexus var. phoeniceus
| C.P. Sm. | Bull. Torrey Bot. Club 45(1): 17–19, f. 13 | 1918 |
| Fabaceae | |
Lupinus subvexus var. subvexus
| | | |
| Fabaceae | |
Lupinus subvexus var. transmontanus
| C.P. Sm. | Bull. Torrey Bot. Club 45(1): 15–16, f. 10 | 1918 |
| Fabaceae | |
Lupinus subvexus var. wilkesii
| C.P. Sm. | Bull. Torrey Bot. Club 45(1): 20, f. 15 | 1918 |