912 Braya purpurascens (R. Br.) Bge

This species has a rather wide arctic distribution (Hultén, Circumpol. Il, p. 18, 312 f. and map 9). Three subspecies are mapped separately, viz. the circumpolar subsp. purpurascens, subsp. thorild-wulfii (Ostenf.) Hult. in northernmost Canada and in Greenland and subsp. pilosa (Hook.) Hult. in arctic Siberia and N. America. The closely related B. rosea (Turcz.) Bge in the C. Asiatic mountains are also mapped.