Page authors: Don Knoke, David Giblin
Veronica serpyllifolia
thyme-leaved speedwell

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

Habitat: Moist meadows and shores, from the lowlands to the subalpine.

Flowers: May-August

Origin: Both native and introduced

Growth Duration: Perennial

Conservation Status: Not of concern

Pollination: Bees, flies


Perennial from branching, creeping rhizomes, the stems 1-3 dm. long, finely puberulent, often producing prostrate, lower branches, otherwise simple.


Leaves opposite, elliptic to broadly ovate, 1-2.5 cm. long and 0.5-1 cm. wide, glabrous, entire or slightly toothed, the lower often short-petiolate, the others sessile.


Flowers on short pedicels in a loose, elongate, terminal raceme, the upper subtending bracts alternate; sepals 4; corolla bright blue to white, 4-8 mm. wide, rotate, 4-lobed, the upper lobe the largest; style 2-3.5 mm. long; stamens 2.


Capsule 3-4 mm. high, broader than high, notched, finely glandular-pubescent,

Accepted Name:
Veronica serpyllifolia L.
Publication: Sp. Pl. 1: 12. 1753.

Synonyms & Misapplications:
(none provided)
Additional Resources:

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

WA Flora Checklist: Veronica serpyllifolia checklist entry

OregonFlora: Veronica serpyllifolia information

E-Flora BC: Veronica serpyllifolia atlas page

CalPhotos: Veronica serpyllifolia photos

73 photographs:
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