Distribution: Occurring throughout much of Washington; widely distributed throughout North America.
Habitat: A weedy species, usually on moist, cultivated or otherwise disturbed soil.
Conservation Status: Not of concern
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.