500705 Saxifraga platysepala (Trautv.) Tolm.
Distribution
Svalbard - Franz Joseph Land: Frequent
Polar Ural - Novaya Zemlya: Scattered
Taimyr - Severnaya Zemlya: Scattered
Yana - Kolyma: Scattered
Wrangel Island: Frequent
Western Alaska: Rare
Northern Alaska - Yukon: Rare
Central Canada: Frequent
Hudson Bay - Labrador: Scattered
Ellesmere Island: Frequent
Western Greenland: Rare
Eastern Greenland: Scattered
Polar desert: Scattered
Northern arctic Tundra: Frequent
Mid Arctic Tundra: Frequent
Southern Arcti Tundra: Scattered
Shrub Tundra: Rare
Bordering boreal or alpine areas: Rare
2n=
32 (4x). - Europe (N), Far East (N), Alaska, Canada, Greenland. - Several reports.
Geography: Circumpolar: NOR RUS SIB RFE ALA CAN GRL.
Notes: This subgenus falls apart in the molecular phylogeny of Soltis et al. (1996) because its sect. Trachyphyllum constitutes a basal branch, distant from the three other sections (Ligulatae, Porphyrion, Xanthizoon). In their analysis, sect. Xanthizoon is fully included in sect. Porphyrion (and S. aizoides is the sister of S. oppositifolia), and these two sections together is the sister of sect. Ligulatae.
Higher Taxa
- Saxifraga [5007,genus]