Veronica anagallis-aquatica |
Veronica serpyllifolia |
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blue water speedwell |
thyme-leaved speedwell |
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Habit | Glabrous, short-lived perennial from fibrous roots, the stems usually erect, 2-10 dm. tall. | Perennial from branching, creeping rhizomes, the stems 1-3 dm. long, finely puberulent, often producing prostrate, lower branches, otherwise simple. |
Leaves | Leaves opposite, sessile and clasping, elliptic-ovate to elliptic-oblong, 2-10 cm. long and 0.7-5 cm. wide, sharply serrate to entire. |
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 | 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. |
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. |
Fruits | Capsule swollen, 2.5-4 mm. high and wide, scarcely notched. |
Capsule 3-4 mm. high, broader than high, notched, finely glandular-pubescent, |
Veronica anagallis-aquatica |
Veronica serpyllifolia |
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Flowering time | June-September | May-August |
Habitat | In or along slow-moving streams and ditches at low to moderate elevations. | Moist meadows and shores, from the lowlands to the subalpine. |
Distribution | Occurring chiefly east of the Cascades crest in Washington; British Columbia to California, east across North America to the Atlantic Coast.
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Widely distributed on both sides of the Cascades crest in Washington; Alaska to California, east across most of North America to the Atlantic Coast.
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Origin | Introduced from Europe | Both native and introduced |
Conservation status | Not of concern | Not of concern |
Sibling taxa | ||
Subordinate taxa | ||
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