| Family | FABACEAE |
| Genus species | Lathyrus brachycalyx Rydb. trib. Vicieae |
| Bibliography | Bull. Torrey Bot. Club 34: 425 (1907) |
| Native Range | wc. USA |
| Primary Biome | Temperate |
| Habitat | rocky slopes |
| Description | stems weakly ramose, finely pubescent, sharply 4-angled, leaflets 2-5-pairs, linear-oblong, rigid, distictly veined, finely pubescent, 1-3cm, flowers 2-6 in short raceme |
| Size | 15-30cm |
| Color | purple |
| Bloom | summer |
| Ca | |
| Type | perennial |
| Cultivation | sunny rock crevices, protection against winter wet alpine house, poor, drained soil, sun |
| Propagation | scarified seed in spring, germ. 1-3 months, 13-18°C division in spring; cuttings in late summer |
| Territory | 7 Northern America 73 Northwestern U.S.A. (IDA Idaho) 76 Southwestern U.S.A. (NEV Nevada, UTA Utah) |