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

Habitat: A weedy species, usually on moist, cultivated or otherwise disturbed soil.

Flowers: March-September

Origin: Introduced from Eurasia

Growth Duration: Perennial

Conservation Status: Not of concern

Pollination: Bees, flies

Usually a glabrous annual, simple to branched, erect to spreading, up to 1 m. tall.

Leaf blades elliptic-lanceolate to narrowly oblong-lanceolate, 5-10 cm. long, usually with a purplish triangular or lunar spot about mid-length, narrowed to a short, thick, non-jointed petiole; stipules obliquely cylindric-conic, never lacerate, bristly along the nerves.

Inflorescence of crowded, pedunculate, compound racemes; flowers white, usually strongly pinkish-tinged; perianth 1.5-2 mm. long, 5-parted.

Achene lenticular, 2-2.5 mm. long, ovate-rotund in outline, black, smooth and shining.