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