Veronica arvensis
corn speedwell, wall speedwell
WTU specimens
Other herbaria

Distribution: Introduced in much of North America; uncommon in the Pacific Northwest

Habitat: Disturbed ground, gardens and roadsides

Flowers: April - September

Origin: Introduced from Eurasia

Conservation Status: Not of concern

Description:
General:

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

Leaves:

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.

Flowers:

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.

Fruits:

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.

E-Flora BC: Veronica arvensis atlas page.

CalPhotos: Veronica arvensis photos.

USDA Plants: Veronica arvensis information.

17 photographs:
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