| Family | FABACEAE |
| Genus species | Trifolium nanum Torr. trib. Trifolieae |
| Bibliography | Ann. Lyceum Nat. Hist. New York 1: 35 (1824) |
| Native Range | w. USA to New Mexico |
| Primary Biome | Subalpine |
| Habitat | rocks |
| Description | glabrous, petiole 5-20mm long, leaflets 3, obovate or oblanceolate, 5-15mm, mucronate, heads 1-4-flowered, flowers 15-22mm long |
| Size | 1-5cm |
| Color | dark reddish purple |
| Bloom | summer |
| Ca | + |
| Type | perennial |
| Cultivation | rock crevices with favourable water regime, eastern slopes alpine house, poor, drained soil, shading in summer |
| Propagation | seed in spring, germ. 1-3 months, 13-18°C basal cuttings in late spring and summer |
| Territory | 7 Northern America 73 Northwestern U.S.A. (COL Colorado, MNT Montana, WYO Wyoming) 76 Southwestern U.S.A. (UTA Utah) 77 South-Central U.S.A. (NWM New Mexico) |