| Carex scirpoidea Michx. | |
| Publ. & Syn. | Michx., Fl. Bor.-Amer. 2: 171 (1803). Described from the Hudson Bay area (Canada). Type in P. |
| Notes | Dunlop (2002) accepted four races of Carex scirpoidea: subsp. scirpoidea widespread from the Russian Far East throughout North America and Greenland to northern Norway, and three others as segregates within the range of subsp. scirpoidea. One of these, the Cordilleran subsp. stenochlaena, reaches the Arctic in northwestern North America and is perhaps the most common race there. The material has not been revised with regard to subspecies, and some of the information items (e.g., chromosome numbers) are not fully separable on them. Löve and Löve (1975a) stated that the type race, subsp. scirpoidea, is restricted to Greenland, whereas subsp. stenochlaena should be the widespread race in all of Canada, Alaska, and the Russian Far East. This view is countered by the type of the species being from the Hudson Bay area in Canada, not from Greenland. See also Dunlop (2002). |
| Chromosomes | 62 64 68. - Alaska, Canada. - At least four reports. |
| Geography | Amphi-Beringian - North American (N) - amphi-Atlantic (W). |
| Parent taxon | Carex L. |
| PAF ID | 3309133 |