| Family | BRASSICACEAE |
| Genus species | Smelowskia porsildii (W.H.Drury & Rollins) Jurtzev |
| Bibliography | Novosti Sist. Vyssh. Rast. 6: 309 (1970) |
| Native Range | n. Russian Far East to Alaska |
| Primary Biome | Subarctic |
| Habitat | tundra |
| Altitude | 0-1700m |
| Description | lower leaves petiolate, linear to spathulate, entire, obtuse, densely grey tomentose, stem leaves shortly petiolate, similar, flowers in raceme, petals suborbiculate |
| Size | 5-15cm |
| Color | white |
| Bloom | summer |
| Ca | |
| Type | perennial |
| Cultivation | humous, moist, but in winter drier, semi-shady site alpine house, moist, humous soil, shading in summer |
| Propagation | seed in spring, barely covered, germ. 1 month, 10-16°C cuttings in late summer |
| Synonyms | Hutchinsia calycina var. integrifolia Seem. Smelowskia calycina var. integrifolia (Seem.) Rollins Smelowskia calycina ssp. integrifolia (Seem.) Hultén Smelowskia calycina f. integrifolia (Seem.) O.E.Schulz Smelowskia calycina var. porsildii W.H.Drury & Rollins Smelowskia jurtzevii Velichkin Smelowskia spathulatifolia Velichkin |
| Territory | 3 Asia-Temperate 31 Russian Far East (MAG Magadan) 7 Northern America 70 Subarctic America (ASK Alaska) |