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.
Origin: Both native and introduced
Conservation Status: Not of concern
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,