| Family | BRASSICACEAE |
| Genus species | Physaria klausii (Rollins) O´Kane & Al-Shehbaz |
| Bibliography | Novon 12: 325 (2002) |
| Native Range | Montana |
| Primary Biome | Subalpine |
| Habitat | rocky slopes |
| Altitude | 1200-1900m |
| Description | densely pubescent, lower leaves obovate to deltate, 1-3cm, entire, stem leaves spathulate, flowers in raceme, petals oblanceolate, 6-8mm, silicles broadly obovate, pubescent |
| Size | 5-15cm |
| Color | yellow |
| 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, barely covered, germ. 1 month, 10-16°C cuttings of rosettes in late summer |
| Synonyms | Lesquerella klausii Rollins |
| Territory | 7 Northern America 73 Northwestern U.S.A. (MNT Montana) |