Page authors: Don Knoke, David Giblin
Veronica arvensis
corn speedwell, wall speedwell

Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to California, east across most of North America to the Atlantic Coast.

Habitat: Disturbed ground, gardens and roadsides

Flowers: April-September

Origin: Introduced from Eurasia

Growth Duration: Annual

Conservation Status: Not of concern

Pollination: Bees, flies


Taprooted annual, somewhat hairy below and puberulent above, the stem erect to nearly prostrate, 0.5-3 dm. long, simple or branched below.


Leaves opposite, ovate to broadly elliptic, 1.5-2.5 cm. long and half as wide to nearly as wide as long, with rounded serrations, the lower short-petiolate, the upper sessile.


Inflorescence a terminal, bracteate, condensed or elongate, spike-like raceme; bracts alternate, narrower than the leaves, each subtending a single flower; calyx of 4 sepals; corolla blue-violet, 2-2.5 mm. wide, rotate, 4-lobed, the upper lobe the largest; pedicels 1-2 mm. long; style 0.4-1 mm. long; stamens 2.


Capsule 3 mm. high, obcordate.

Accepted Name:
Veronica arvensis L.
Publication: Sp. Pl. 1: 13. 1753.

Synonyms & Misapplications:
(none provided)
Additional Resources:

PNW Herbaria: Specimen records of Veronica arvensis in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Veronica arvensis checklist entry.

OregonFlora: Veronica arvensis information.

E-Flora BC: Veronica arvensis atlas page.

CalPhotos: Veronica arvensis photos.

USDA Plants: Veronica arvensis information.

17 photographs:
Group by