500703c Saxifraga hirculus subsp. compacta Hedberg
Distribution
Northern Iceland: Scattered
Kanin - Pechora: Rare
Svalbard - Franz Joseph Land: Frequent
Polar Ural - Novaya Zemlya: Frequent
Yamal - Gydan: Scattered
Anabar - Onenyo: Rare
West Chukotka: Rare
Wrangel Island: Rare
South Chukotka: Presence uncertain
Western Alaska: Scattered
Northern Alaska - Yukon: Rare
Eastern Greenland: Scattered
Polar desert: Scattered
Northern arctic Tundra: Scattered
Mid Arctic Tundra: Scattered
Southern Arcti Tundra: Scattered
Shrub Tundra: Scattered
Bordering boreal or alpine areas: Scattered
2n=
32 (4x). - Europe (Iceland, Svalbard), Greenland (E). - At least six localities, by Hedberg (1992) also mentioned with counts from the "Soviet Union" and from Alaska.
Geography: North American (NE) - amphi-Atlantic - European (N) - Asian (N) - amphi-Beringian: ICE NOR RUS SIB RFE ALA CAN GRL.
Notes: Zhmylev: The majority of the section is often traditionally regarded as geographical races of one polymorphic species, Saxifraga flagellaris Willd. s. lat. Two species are proposed to be present in the Arctic. Webb and Gornall (1989) treated them as subspecies.
Elven: Also Brouillet and Elvander (2009b) treated the two taxa as subspecies. We find the morphological differences between them clear, both in North America where they are nearly allopatric and in Eurasia where there at least is some overlap. No transition forms are documented or suggested and there is a ploidy difference. We can see no reason for not accepting two species, both different from S. flagellaris s. str.
Higher Taxa
- Saxifraga hirculus [500703,species]