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Euphrasia stricta
Also called Drug eyebright, Rigid eyebright, Short Haired Eyebright, An Eyebright, Stiff Eyebright
Euphrasia stricta, the drug eyebright, is an annual forb in the genus Euphrasia.
It has been introduced in northeastern North America, where it is found in New England (except Connecticut), New York, Pennsylvania, Nova Scotia, New Brunswick, Prince Edward Island, Ontario, Quebec, the upper peninsula of Michigan, northern Wisconsin, Minnesota and Illinois. It is also found in Central Europe and Pyrenees
Euphrasia stricta is used in herbal medicine to treat inflammatory eye conditions, most notably allergic conjunctivitis. The German Commission E did not consider there to be sufficient evidence to prove eyebright is useful for any condition. Human clinical trials are lacking to support traditional claims, though absence of evidence is not proof of inefficacy.
Euphrasia alpina · Euphrasia arguta · Euphrasia brevipila · Welsh Eyebright · Euphrasia collina · Thick Eyebright · North Island eyebright · Euphrasia fragosa · Eyebright · Long Glandular Eyebright · Euphrasia hookeri · Hairy Eyebright
Text excerpted from the Wikipedia article Euphrasia stricta by its contributors, under CC BY-SA 4.0; the excerpts are shared under the same licence.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.
