Panarctic Flora

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330512 Eriophorum russeolum Fr. ex Hartm.

Geography: Circumboreal.

Notes: Elven and Murray: Novoselova (1993, PAF proposal) accepted two races of Eriophorum russeolum: subsp. russeolum in Europe and western Siberia and subsp. leiocarpum in Siberia, the Russian Far East, and North America. Cayouette (2004) accepted the same two subspecies but with a difference in range as he assigned eastern Canadian plants to subsp. russeolum, which thereby becomes amphi-Atlantic and overlapping with subsp. leiocarpum. We are not convinced that there are two sympatric subspecies in eastern Canada.

Novoselova: Subspecies leiocarpum differs from subsp. russeolum in lower culms, (14) 20-30 (35) vs. 15-80 cm; fruiting heads white or cream coloured vs. different shades of ferrugineous or red; scales dark grey to black vs. grey to dark grey; anthers (0.7) 1-2 (3) vs. (1.5) 2-3 mm; and achenes glabrate or with very few spicules at apex vs. with numerous spicules at apex, rarely glabrate.

Higher Taxa