| Family | MONTIACEAE |
| Genus species | Claytonia megarhiza (A.Gray) Parry ex S.Watson |
| Bibliography | Bibl. Index N. Amer. Bot.: 118 (1878) |
| Native Range | Northwest Territories to n. New Mexico |
| Primary Biome | Subalpine |
| Habitat | rocks and scree |
| Altitude | 2000-4000m |
| Description | taproot, basal leaves numerous, rhombic-ovate, petiolate, flowers 2-9 in raceme, inflorescence multibracteate, flowers 12-20mm across |
| Size | 5-10cm |
| Color | dark pink, white |
| 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 winter, germ. 1-3 months, 13-16°C cuttings in summer |
| Synonyms | Claytonia arctica var. megarhiza A.Gray Claytonia bellidifolia Rydb. Claytonia megarhiza var. bellidifolia (Rydb.) C.L.Hitchc. Claytonia megarhiza var. nivalis (English) C.L.Hitchc. Claytonia nivalis English |
| Territory | 7 Northern America 70 Subarctic America (NWT Northwest Territories) 71 Western Canada (ABT Alberta, BRC British Columbia) 73 Northwestern U.S.A. (COL Colorado, IDA Idaho, MNT Montana, ORE Oregon, WAS Washington, WYO Wyoming) 76 Southwestern U.S.A. (CAL California, NEV Nevada, UTA Utah) 77 South-Central U.S.A. (NWM New Mexico) |