| Family | ASTERACEAE |
| Genus species | Erigeron porsildii G.L.Nesom & D.F.Murray trib. Astereae |
| Bibliography | Sida 21: 44 (2004) |
| Native Range | Subarctic America |
| Primary Biome | Subarctic |
| Habitat | rocks and scree |
| Altitude | 600-2100m |
| Description | basal leaves oblong-oblanceolate to narrowly obovate, entire, acute, densely villose, stem leaves lanceolate, capitula solitary, involucre densely hirsute, ligules 15mm |
| Size | 2-20cm |
| Color | white, blue |
| 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 spring, barely covered, germ. 1 month, 16-21°C division in spring; cuttings in spring and late summer |
| Synonyms | Erigeron grandiflorus ssp. arcticus A.E.Porsild |
| Territory | 7 Northern America 70 Subarctic America (ASK Alaska, NWT Northwest Territories, YUK Yukon) |