| Family | MONTIACEAE |
| Genus species | Calyptridium umbellatum (Torr.) Greene |
| Bibliography | Bull. Torrey Bot. Club 13: 144 (1886) |
| Native Range | sw. Canada to Baja California Norte |
| Primary Biome | Temperate |
| Habitat | scree |
| Altitude | 1500-4300m |
| Description | leaves succulent, spathulate, dully dark green, scape with compact umbel of flowers, sepals orbiculate, equal, petals 4, 3-8mm long |
| Size | 10-15cm |
| Color | white |
| Bloom | summer |
| Ca | |
| Type | perennial |
| Cultivation | gravelly, humous, moist, sunny site alpine house, moist, humous, gravelly soil, sun |
| Propagation | seed in spring, germ. 1-3 months 18-21°C cuttings of rosettes in summer |
| Synonyms | Calyptridium nudum Greene Calyptridium paniculatum (Kellogg) Greene Calyptridium umbellatum var. caudiciferum (A.Gray) Jeps. Cistanthe umbellata (Torr.) Hershk. Cistanthe umbellata var. caudicifera (A.Gray) Kartesz & Gandhi Spraguea caudicifera (A.Gray) Brockman Spraguea montana (M.E.Jones) A.Heller Spraguea multiceps Howell Spraguea nuda (Greene) Howell Spraguea paniculata Kellogg Spraguea umbellata Torr. Spraguea umbellata var. caudicifera A.Gray Spraguea umbellata var. montana A.Gray |
| Territory | 7 Northern America 71 Western Canada (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) 79 Mexico (MXE Mexico Northeast) |