| Family | SAXIFRAGACEAE |
| Genus species | Micranthes nelsoniana (D.Don) Small sect. Calthophyllum |
| Bibliography | N. Amer. Fl. [N.L.Britton & al., eds.] 22: 147 (1905) |
| Native Range | Siberia to Korea, Subarctic America |
| Primary Biome | Subalpine or Subarctic |
| Habitat | shady rocks |
| Altitude | 0-2500m |
| Description | leaves long petiolate, reniform, costapalmate, broadly dentate, glandular ciliate, inflorescence 30-52-flowered panicle, sepals reflexed, ovate, petals ovate, 2-3mm long |
| Size | 10-30cm |
| Color | lilac, white |
| Bloom | summer |
| Ca | |
| Type | perennial |
| Cultivation | shady, humous, rock crevices alpine house, humous, gravelly soil, shade |
| Propagation | seed in winter, barely covered, germ. 1-3 months, 16-21°C cuttings in late summer |
| Synonyms | Micranthes arguta Small Saxifraga arguta D.Don Saxifraga denudata Nutt. Saxifraga gracilis Stephan ex Sternb. Saxifraga megalodon Nasarow Saxifraga nelsoniana D.Don Saxifraga punctata ssp arguta (D.Don) Hultén Saxifraga punctata var. arguta (D.Don) Engl. & Irmsch. Saxifraga punctata ssp. nelsoniana (D.Don) Hultén Saxifraga punctata var. nelsoniana (D.Don) Engl. Saxifraga tuberosa Sternb. |
| Territory | 3 Asia-Temperate 30 Siberia (KRA Krasnoyarsk, WSB West Siberia, YAK Yakutskiya) 31 Russian Far East (KAM Kamchatka, KHA Khabarovsk, KUR Kuril Is., MAG Magadan, SAK Sakhalin) 36 China (CHI Inner Mongolia, CHM Manchuria) 37 Mongolia 38 Eastern Asia (KOR Korea) 7 Northern America 70 Subarctic America (ASK Alaska, NWT Northwest Territories, YUK Yukon) |