Panarctic Flora

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641019 Potentilla borealis Soják

Distribution

West Chukotka: Scattered
Wrangel Island: Rare
East Chukotka: Rare
Mid Arctic Tundra: Presence uncertain
Southern Arcti Tundra: Rare
Shrub Tundra: Rare
Bordering boreal or alpine areas: Rare

GBIF

2n= (1) 42 (6x). - Far East (South and West Chukotka). - Zhukova and Petrovsky (1985b, three counts).
(2) 56 (8x). - Far East (West Chukotka). - Zhukova and Petrovsky (1985b, one count).

Geography: Asian Beringian: RFE.

Notes: Potentilla borealis is assumed to be a hybrid species from P. anachoretica and P. arenosa subsp. arenosa. Alaskan occurrence, as proposed by Yurtsev (PAF proposal), has not been confirmed.

Yurtsev: The hypothesis of hybrid origin should be tested. Ultrastructure data do not contradict the hybrid hypothesis though the characters of P. arenosa are better represented: petioles without wool with layer of shorter straight hairs under that of longer inclined ones.

Higher Taxa