Page authors: Don Knoke, David Giblin
Veronica anagallis-aquatica
blue water speedwell

Distribution: Occurring chiefly east of the Cascades crest in Washington; British Columbia to California, east across North America to the Atlantic Coast.

Habitat: In or along slow-moving streams and ditches at low to moderate elevations.

Flowers: June-September

Origin: Introduced from Europe

Growth Duration: Perennial

Conservation Status: Not of concern

Pollination: Bees, flies


Glabrous, short-lived perennial from fibrous roots, the stems usually erect, 2-10 dm. tall.


Leaves opposite, sessile and clasping, elliptic-ovate to elliptic-oblong, 2-10 cm. long and 0.7-5 cm. wide, sharply serrate to entire.


Inflorescence of many-flowered racemes on long peduncles arising in the leaf axils; calyx of 4 highly variable sepals; corolla blue, rotate, 4-lobed, the upper lobe the largest, about 5 mm. wide; style 1.5-2.5 mm. long; pedicels up-curved, 3-8 mm. long; stamens 2.


Capsule swollen, 2.5-4 mm. high and wide, scarcely notched.

Accepted Name:
Veronica anagallis-aquatica L.
Publication: Sp. Pl. 1: 12. 1753.

Synonyms & Misapplications:
Veronica anagallis L., invalidly published, nomen nudum
Additional Resources:

PNW Herbaria: Specimen records of Veronica anagallis-aquatica in the Consortium of Pacific Northwest Herbaria database

WA Flora Checklist: Veronica anagallis-aquatica checklist entry

OregonFlora: Veronica anagallis-aquatica information

E-Flora BC: Veronica anagallis-aquatica atlas page

CalPhotos: Veronica anagallis-aquatica photos

32 photographs:
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