familyOrobanchaceae
genusEuphrasia
speciesEuphrasia arctica
subspeciesEuphrasia arctica subsp. borealis
Euphrasia arctica subsp. borealis
Bot. J. Linn. Soc. 64: 358. 1971.
Common names: Boreal eyebright
Basionym: Euphrasia rostkoviana Hayne forma borealis F. Townsend Bot. Exch. Club Brit. Isles Rep. 1: 307. 1891
Synonyms: E. ×aequalis Callen E. borealis (F. Townsend) Wettstein E. ×vestita Callen
Stems: base erect; branches 1–5(or 6) pairs, usually straight. Inflorescences: bract surfaces hairy, hairs glandular and eglandular bristles, teeth much longer than wide. Flowers: corolla 6–8(–10) mm. 2n = 44 (Europe).
Phenology: Flowering early summer–fall.
Habitat: Meadows, pastures, roadsides, dunes, wood margins, scrub, grassy places, rocky shorelines, open, moist calcareous barrens.
Elevation: 0–300 m.
Distribution
Greenland, B.C., N.B., Nfld. and Labr., N.S., Ont., P.E.I., Que., Maine, Europe (British Isles, Norway), Atlantic Islands (Iceland).
Discussion
Selected References
None.
Lower Taxa
None.