| Euphrasia wettsteinii G. Gusarova | |
| Publ. & Syn. | Euphrasia frigida auct., non Pugsley (1930). |
| Notes | Gusarova and Elven: A common eglandular, small-flowered plant in the North Atlantic regions has for several decades been considered under the name Euphrasia frigida. The Greenland type of E. frigida designated by Pugsley (1933) is glandular, large-flowered, and differs also in other aspects from the plant that has gone by that name. The name E. wettsteinii therefore replaces the name E. frigida for the plants in northern Europe and Canada and also for a major part of the Greenland plants. Euphrasia wettsteinii is early and small-flowered, eglandular, and the only species with a major range in the Arctic from northeastern Canada across Greenland and northern Europe to northwestern Siberia. It is, however, polymorphic and may fall apart into several taxa when further investigated. The Icelandic plants, for instance, differ from the Fennoscandian ones (i.e., from the type region). |
| Chromosomes | 44 (4x). - Europe (NW), Greenland. - Löve and Löve (1956b); Jørgensen et al. (1958). The assignment of these two reports under this species name is uncertain. |
| Geography | North American (NE) - amphi-Atlantic - European (N) - Asian (NW): ICE NOR RUS SIB CAN GRL. |
| Distribution | N = F B = R C = S GW = f D = F Ic = f E = F YG = s HL = s FN = f EP = r UN = s GE = f SF = r Tm = r KP = s [ key ] |
| Parent taxon | Euphrasia L. |
| PAF ID | 810401 |