330509a Eriophorum scheuchzeri subsp. scheuchzeri
Distribution
Northern Iceland: Frequent
Northern Fennoscandia: Frequent
Kanin - Pechora: Frequent
Polar Ural - Novaya Zemlya: Scattered
Yamal - Gydan: Scattered
Taimyr - Severnaya Zemlya: Rare
Anabar - Onenyo: Presence uncertain
Kharaulakh: Rare
Yana - Kolyma: Scattered
West Chukotka: Rare
Wrangel Island: Presence uncertain
South Chukotka: Rare
East Chukotka: Rare
Western Alaska: Scattered
Northern Alaska - Yukon: Scattered
Central Canada: Scattered
Hudson Bay - Labrador: Frequent
Western Greenland: Frequent
Eastern Greenland: Frequent
Northern arctic Tundra: Rare
Mid Arctic Tundra: Scattered
Southern Arcti Tundra: Frequent
Shrub Tundra: Frequent
Bordering boreal or alpine areas: Frequent
- ?Eriophorum scheuchzeri var. tenuifolium Ohwi, Mem. Coll. Sci. Kyoto Imp. Univ., ser. B, Biol. 18, 1: 91 (1944). Described from Japan.
2n=
58. - Europe (Iceland), Alaska. - Löve and Löve (1956b); Dawe and Murray (1979).
Geography: Circumpolar-alpine: ICE NOR RUS SIB RFE ALA CAN GRL.
Notes: Doubts about some regions in the distribution tables are due to lack of revision with respect to subspecies.
Elven, Murray, and Solstad: Novoselova commented that subsp. scheuchzeri is rare in the northernmost parts of the range of the species in the Russian Arctic, where it is replaced by subsp. arcticum. The same is the case in Alaska and the Yukon Territory where subsp. arcticum occurs in the northern and alpine parts, whereas subsp. scheuchzeri is the lowland race becoming more rare in the Arctic. The northwestern European and Greenlandic material divides nicely on the two races, with subsp. arcticum present in Svalbard and northern and central Greenland, subsp. scheuchzeri everywhere else in northwestern Europe (including Iceland) and in southern and central Greenland. It is probable that the ranges of these two subspecies are similar in other parts of the Arctic.
Elven and Murray: There may be additional variation within subsp. scheuchzeri. The amphi-Pacific and amphi-Beringian plants with very slender leaves and culms and small heads differ from the coarser plants with larger heads found outside the Pacific and Beringian regions (i.e., E. scheuchzeri s. str.). A racial separation might be justified but the detail characters in heads and scales are similar in the two putative taxa. The name of the slender plant may be var. tenuifolium Ohwi. Novoselova assigned this name as a synonym under the species, not under any of her two subspecies. Cayouette (2004) did not discuss this name which has been applied mainly in the Pacific regions. Variety tenuifolium is much less distinct morphologically from subsp. scheuchzeri than is subsp. arcticum.
Higher Taxa
- Eriophorum scheuchzeri [330509,species]