Distribution: Both coastal and inland populations in Washington; Native and introduced throughout North America.
Habitat: Saline or brackish areas along the coast, and alkaline areas inland.
Conservation Status: Not of concern
Somewhat glandular-pubescent annual with many ascending to erect stems up to 3.5 dm. long and only 1-1.5 mm. thick.
Leaves opposite, 1-3 cm. long and 1 mm. wide; stipules about 3 mm. long and wide.
Flowers in an open, branched, leafy, terminal cyme; sepals 5, distinct, about 3.5 mm. long, usually glandular-hairy; petals 5, white to deep pink, about 1 mm. shorter than the sepals; stamens 2-5; styles 3, distinct, 0.5 mm. long.
Capsule as long as or somewhat longer than the calyx, opening to the base by 3 valves.