| Fabaceae | |
Lupinus lyallii fo. albiflorus
| Moldenke | Phytologia 18(5): 294–295 | 1969 |
| Fabaceae | |
Lupinus lyallii subsp. alcis-temporis
| (C.P. Sm.) B.J. Cox | Rhodora 76(807): 436 | 1974 |
| Fabaceae | |
Lupinus lyallii var. danaus
| (A. Gray) S. Watson | Proc. Amer. Acad. Arts 8: 534 | 1873 |
| Fabaceae | |
Lupinus lyallii var. fruticulosus
| (Greene) C.P. Sm. | Bull. Torrey Bot. Club 51(7): 303 | 1924 |
| Fabaceae | |
Lupinus lyallii var. lobbii
| (S. Watson) C.P. Sm. | Man. Fl. Pl. Calif. 525 | 1925 |
| Fabaceae | |
Lupinus lyallii subsp. lyallii
| | | |
| Fabaceae | |
Lupinus lyallii var. lyallii
| | | |
| Fabaceae | |
Lupinus lyallii var. macroflorus
| B.J. Cox | Rhodora 76(807): 432–433, f. 1 | 1974 |
| Fabaceae | |
Lupinus lyallii subsp. minutifolius
| (Eastw.) B.J. Cox | Rhodora 76(807): 438 | 1974 |
| Fabaceae | |
Lupinus lyallii var. roguensis
| B.J. Cox | Rhodora 76(807): 433–435, f. 1 | 1974 |
| Fabaceae | |
Lupinus lyallii subsp. subpandens
| C. P. Smith ex D. Dunn | Aliso 3(2): 171–172 | 1955 |
| Fabaceae | |
Lupinus lyallii var. villosus
| Jeps. | Fl. Calif. 2(3): 267 | 1936 |
| Fabaceae | |
Lupinus lyallii subsp. washoensis
| (A. Heller) B.J. Cox | Rhodora 76(807): 442 | 1974 |