| Potentilla sp. "Quebec" | |
| Publ. & Syn. | Lehm., Monogr. Potentill.: 172 (1820). - Nomen novum for Potentilla hirsuta Vahl ex Hornem., Fl. Dan. 8, 22: t. 1390 (1810), non Michx., Fl. Bor.-Amer. 1: 303 (1803). Lectotype (PR 378220): Greenland: "e Groenlandia", leg. J. Vahl, Herb. Lehmann (Soják 1996: 122). The type is from the Disko area in western Greenland. |
| Notes | Cayouette and Elven: A major part, if not all, of what traditionally has been assigned to Potentilla vahliana from the northern (mainland) parts of Quebec combines characters of three species, i.e., strongly tussocky growth, leaf shape and large, showy flowers from P. subvahliana combined with petioles with both slightly verrucose straight hairs from P. arenosa s. lat. and floccose hairs from P. nivea. These characters suggest that all three species are involved: P. arenosa (probably subsp. chamissonis), P. nivea, and P. subvahliana. We assume that hybridization has taken place between P. vahliana (P. nivea x subvahliana) and P. arenosa subsp. chamissonis and produced populations. |
| Chromosomes | (1) 42 (6x). - Greenland (W). - Jørgensen et al. (1958). (2) 49 (7x). - Canada (Baffin Island). - Dansereau and Steiner (1956). (3) 56 (8x). - Canada (Baffin island). - Dansereau and Steiner (1956). |
| Geography | North American (NE): CAN. |
| Distribution | N = R E = R HL = r [ key ] |
| Parent taxon | Potentilla L. |
| PAF ID | 641032 |