| Botrychium pinnatum H. St. John | |
| Publ. & Syn. | Botrychium crassinervium var. obtusilobum Rupr., Bemerk. Botrychium: 43 (1859). Described from Unalaska in the Aleutian Islands (Alaska). - Botrychium boreale subsp. obtusilobum (Rupr.) R.T. Clausen, Mem. Torrey Bot. Club 19: 81 (1938). |
| Notes | Wagner Jr. and Wagner (1993) distinguished between Botrychium boreale and a western North American B. pinnatum. Cody (1996) reported B. pinnatum from the northern parts of the Richardson Mountains in the Borderline Arctic in the Yukon Territory. Tzvelev: The Chukchi Peninsula plants, previously considered B. boreale, are geographically much closer to B. pinnatum and have been confirmed as such. |
| Chromosomes | 180 (4x). - North America (W). - Löve et al. (1971, for B. boreale but most probably this species); Wagner (1993). |
| Geography | Amphi-Beringian (E) - Cordilleran: RFE ALA (CAN). |
| Distribution | N = F AN = b E = R CE = r AW = r [ key ] |
| Parent taxon | Botrychium Sw. |
| PAF ID | 050105 |