| Eriophorum russeolum Fr. ex Hartm. | |
| Publ. & Syn. | Hartm., Handb. Skand. Fl., ed. 3: 13 (1838). Lectotype (UPS V-108936): Sweden: Torne lappmark, Karesuando, leg. L.L. Laestadius in Fries, Herb. Norm. fasc. 3: 67 (Cayouette 2004: 800). |
| 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. |
| Chromosomes | 58. - Europe (N), Canada, Greenland. - Several reports from regions where only subsp. arcticum is documented. |
| Geography | Circumboreal. |
| Parent taxon | Eriophorum L. |
| Child taxa |
Eriophorum russeolum subsp. leiocarpum M.S. Novos. Eriophorum russeolum subsp. russeolum |
| PAF ID | 330512 |