| Family | FABACEAE |
| Genus species | Thermopsis rhombifolia (Pursh) Richardson trib. Thermopsideae |
| Bibliography | Narr. Journey Polar Sea [J.Franklin]: 737 (1823) |
| Native Range | Canada to w. & c. USA |
| Primary Biome | Temperate |
| Habitat | steppes |
| Description | glabrous to pubescent, stipules ovate-cordate, leaflets oblanceolate, 15-30mm long, flowers ca. 2cm, raceme 10-30-flowered, short, dense, ca. 10cm, pod sericeous |
| Size | 20-30cm |
| Color | yellow |
| Bloom | late spring, summer |
| Ca | |
| Type | perennial |
| Cultivation | sunny site with a deep, drained soil alpine house, rich, drained soil, sun |
| Propagation | scarified seed in spring, germ. 1-3 months, 16-21°C division in fall; cuttings in late summer |
| Synonyms | Cytisus rhombifolius Pursh Drepilia rhombifolia (Pursh) Raf. Scolobus rhombifolius (Pursh) Raf. Thermia rhombifolia (Pursh) Nutt. Thermopsis annulocarpa A.Nelson Thermopsis arenosa A.Nelson Thermopsis rhombifolia var. annulocarpa (A.Nelson) L.O.Williams Thermopsis rhombifolia var. arenosa (A.Nelson) Larisey |
| Territory | 7 Northern America 71 Western Canada (ABT Alberta, BRC British Columbia, MAN Manitoba, SAS Saskatchewan) 72 Eastern Canada (ONT Ontario) 73 Northwestern U.S.A. (COL Colorado, MNT Montana, WYO Wyoming) 74 North-Central U.S.A. (NDA North Dakota, NEB Nebraska, OKL Oklahoma, SDA South Dakota) 76 Southwestern U.S.A. (UTA Utah) 77 South-Central U.S.A. (NWM New Mexico) |