Hairy eyebright

Euphrasia nemorosa

General: Semi-parasitic, hairy annual, the stem 5-20 cm. tall, often well-branched.
Leaves: Leaves all cauline, mostly opposite, often alternate above, ovate to broadly elliptic, deeply toothed.
Flowers: Inflorescence a leafy-bracteate, terminal spike, the bracts broad and toothed; flowers white, often violet-tinged or with purple veins or a yellow spot; calyx deeply 4-cleft; corolla bi-labiate, the upper lip shallowly 2-lobed, the lower lip deeply 3-lobed, the lobes slightly notched; stamens 4; stigma entire.
Hairy eyebright  Euphrasia nemorosa,hairy eyebright

Appearance

General: Semi-parasitic, hairy annual, the stem 5-20 cm. tall, often well-branched.
Leaves: Leaves all cauline, mostly opposite, often alternate above, ovate to broadly elliptic, deeply toothed.
Flowers: Inflorescence a leafy-bracteate, terminal spike, the bracts broad and toothed; flowers white, often violet-tinged or with purple veins or a yellow spot; calyx deeply 4-cleft; corolla bi-labiate, the upper lip shallowly 2-lobed, the lower lip deeply 3-lobed, the lobes slightly notched; stamens 4; stigma entire.
Fruits: Capsule.
Common Eye Bright Introduced from Europe - parasitic on the roots of grasses Euphrasia nemorosa,Euphrasia rostkoviana,Geotagged,Summer,United States,hairy eyebright

Naming

Euphrasia americana Wettst.
Euphrasia arctica Lange ex Rostrup ssp. borealis (F. Towns.) Yeo
Euphrasia borealis (Townsend) Wettst.
Euphrasia curta (Fries) Wettst.

Distribution

introduced

Habitat

Disturbed areas.

References:

Some text fragments are auto parsed from Wikipedia.

http://biology.burke.washington.edu/herbarium/imagecollection/taxon.php?Taxon=Euphrasia%20nemorosa
Taxonomy
KingdomPlantae
DivisionAngiosperms
ClassEudicots
OrderLamiales
FamilyOrobanchaceae
GenusEuphrasia
SpeciesEuphrasia nemorosa