| Family | BRASSICACEAE |
| Genus species | Physaria prostrata (A.Nelson) O´Kane & Al-Shehbaz |
| Bibliography | Novon 12: 327 (2002) |
| Native Range | Idaho to Wyoming and Utah |
| Primary Biome | Subalpine |
| Habitat | rocky slopes |
| Altitude | 1800-2500m |
| Description | leaves in rosette, densely silvery pubescent, 1-5cm, rhombic to deltate or elliptic, abruptly tapered to thin petiole, flowers in elongate, open raceme |
| Size | 5-15cm |
| Color | yellow |
| Bloom | spring, early 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, barely covered, germ. 1 month, 10-16°C cuttings of rosettes in late summer |
| Synonyms | Lesquerella prostrata A.Nelson |
| Territory | 7 Northern America 73 Northwestern U.S.A. (IDA Idaho, WYO Wyoming) 76 Southwestern U.S.A. (UTA Utah) |