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Euphrasia nemorosa (Common eyebright)
Reveal, James L.

Euphrasia nemorosa

Euphrasia nemorosa (Pers.) Wallr.

Common Eyebright, Eyebright

Scrophulariaceae (Figwort Family)

Synonym(s): Euphrasia americana, Euphrasia arctica ssp. borealis, Euphrasia borealis, Euphrasia canadensis, Euphrasia curta, Euphrasia pectinata, Euphrasia tatarica

USDA Symbol: EUNE3

USDA Native Status: L48 (N), AK (I), CAN (N), SPM (N)

A small plant with short, spike-like, terminal clusters of pale lavender flowers on a hairy stem and its branches.

There are several species of eyebright, native to the colder regions. They are partly parasitic on the roots of other plants. The common name refers to the fact that the plants were at one time used to treat eye diseases and improve vision. The genus name, from the Greek word for "cheerfulness," may allude to the same properties.


From the Image Gallery

10 photo(s) available in the Image Gallery

Plant Characteristics

Duration: Annual
Habit: Herb

Bloom Information

Bloom Time: Jun , Jul , Aug , Sep


USA: CT , MA , ME , MI , MN , NH , VT , WA
Canada: NL , PE
Native Distribution: Ontario east to Newfoundland and south to Connecticut; also in Michigan and Minnesota.
Native Habitat: Fields and roadsides.

Growing Conditions

Soil pH: Alkaline (pH>7.2)
CaCO3 Tolerance: High

Additional resources

USDA: Find Euphrasia nemorosa in USDA Plants
FNA: Find Euphrasia nemorosa in the Flora of North America (if available)
Google: Search Google for Euphrasia nemorosa


Record Modified: 2019-08-19
Research By: TWC Staff

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