| Family | SAXIFRAGACEAE |
| Genus species | Micranthes mertensiana (Bong.) Rosend. |
| Bibliography | Beibl. Bot. Jahrb. Syst. 83: 71 (1905) |
| Native Range | Alaska to California |
| Primary Biome | Subalpine |
| Habitat | grassland and scree |
| Altitude | 0-2500m |
| Description | leaves suborbiculate, at base cordate, sparsely hirsute, incised lobate, segments tridentate, petioles at base long membranously vaginate, flowers in lax panicle |
| Size | 10-25cm |
| Color | white |
| Bloom | late spring, summer |
| Ca | |
| Type | subshrub |
| Cultivation | gravelly, humous, moist, semi-shady site alpine house, moist, humous, gravelly soil, semi-shade |
| Propagation | seed in winter, barely covered, germ. 1-3 months, 16-21°C cuttings in late summer |
| Synonyms | Heterisia eastwoodiae Small Heterisia mertensiana Small Saxifraga eastwoodiae (Small) Fedde Saxifraga heteratha Hook. Saxifraga mertensiana Bong. Saxifraga mertensiana var. bulbillifera Engl. & Irmsch. Saxifraga mertensiana var. eastwoodiae (Small) Engl. & Irmsch. Saxifraga mertensiana f. eastwoodiae (Small) B.Boivin Saxifraga mertensiana var. glandipilosa H.St.John & Hardin Steiransia heterantha (Hook.) Raf. |
| Territory | 7 Northern America 70 Subarctic America (ASK Alaska) 71 Western Canada (ABT Alberta, BRC British Columbia) 73 Northwestern U.S.A. (IDA Idaho, MNT Montana, ORE Oregon, WAS Washington) 76 Southwestern U.S.A. (CAL California) |