| Euphrasia stricta D. Wolff ex J.F. Lehm. | |
| Publ. & Syn. | Euphrasia arctica auct., non Lange ex Rostr. (1870-1871). |
| Notes | Euphrasia stricta reaches the Arctic in Vardø in Norway, perhaps also in Kanin-Pechora in northeastern European Russia. Inspected material from arctic and near-arctic sites in Scandinavia belongs to var. or subsp. tenuis. Euphrasia stricta is a common species in northern and central Europe and is characterized by flowers large and white-lilac, first flowering from low to high nodes (3.-14. node), leaves (and especially bracts) usually sharp-dentate, and with a mixture of eglandular and very short-stalked glandular hairs (but glandular hairs often absent in autumnal, subglabrous forms). Yeo assigned the northern or seasonal (aestival) race to the Atlantic E. arctica as a subsp. tenuis. It has later been considered by Nordic authors (e.g., J. Jalas and T. Karlsson) as a var. tenuis of the more generally distributed mainland European E. stricta. The type race, var. stricta, is more southern and probably non-arctic. Gusarova considers species rank for "tenuis" but then with another species name (due to homonymy with E. tenuis Wettst. from Chile). |
| Chromosomes | 44 42-48 (4x). - Europe (N, C). - Several reports for E. brevipila, E. officinalis (s. lat.), and E. stricta. Not included: Two reports of 2n = 44 (4x) from Iceland and Greenland, referred by Löve and Löve (1975a) for E. arctica, are both suspect, but see E. arctica below. |
| Geography | European: NOR RUS? |
| Distribution | N = F E = R FN = r KP = ? [ key ] |
| Parent taxon | Euphrasia L. |
| PAF ID | 810406 |