Distribution: Scattered locations on both sides of the Cascades in Washington; British Columbia south to California; eastern North America.
Habitat: Moist, disturbed areas.
Growth Duration: Annual
Conservation Status: Not of concern
Glabrous, pale glaucous-green annual, the stems simple or branched, 1-4 dm. tall, erect or nearly prostrate, somewhat angled.
Leaves alternate, or some of the lower ones opposite, linear to oblong, 1-2.5 cm. long and 1-8 mm. broad, entire.
Flowers perfect, solitary and sessile in the upper leaf axils; calyx tube 4-5 mm. long, with 5-7 lobes about 0.5 mm. long, and linear appendages about twice as long alternating with the lobes; petals 5-7, white to rose, 2-3.5 mm. long, attached to the top of the calyx tube; stamens inserted in the calyx tube.
Capsule elongate, 2-celled.