Distribution: Southern British Columbia south east of the Cascades to California; common in eastern United States.
Habitat: Weed of open fields and wooded slopes.
Flowers: April - May
Conservation Status: Not of concern
Low, spreading annual, the freely branched stems 5-10 cm. long, somewhat pubescent.
Leaves short-petiolate, the blades obovate with a wedge-shaped base, bi-ternately lobed, 4-8 mm. long; stipules sheathing, deeply toothed.
Flowers borne along most of the length of the stem, usually 5-15 at each node in the axils of the sheathing stipules, opposite the petiole; pedicles shorter or longer than the stipules; calyx tube 1-1.5 mm. long, narrowly bell-shaped, with 4 short, triangular, erect lobes; petals none; stamens usually one.
Achene glabrous, ellipsoid.