1105 Potentilla hookeriana Lehm.

This arctic, partly arctic-montane species includes two subspecies, viz. subsp. hookeriana occurring from NE. Russia through Siberia to northwestern and western N. America and subsp. chamissonis (Hult.) Hult. with an arctic-amphi-atlantic distribution (Hultén, Amphi-atl., p. 26 and map 8). The species s. lat. belongs to the circumpolar plants (Hultén, Circumpol. Il, p. 28 and map 20).