Distribution: Occurring on both sides of the Cascades in Washington; Vancouver Island, British Columbia to Baja California, east to Montana, Utah, and Arizona.
Habitat: Moist to seasonally moist meadows, springs, shores, riparian zones, slopes, roadsides, and ditches.
Growth Duration: Annual
Conservation Status: Not of concern
Annual, the stem simple or branched, 1.5-10 dm. tall, with gray, appressed hairs or soft, spreading hairs.
Leaves alternate, sessile, crowded, the lower ones lanceolate, 1.5-5 cm. long, mostly entire; floral leaves ovate to ovate-lanceolate, entire or remotely denticulate, up to 15 mm. long and 12 mm. broad.
Flowers sessile in elongate, crowded terminal and lateral spikes; calyx funnel-shaped, 1.5-2.5 mm. long, 4-lobed; petals 4, borne on the calyx, pale pink to rose, 3-8 mm. long, lobed up to half their length; ovary inferior, 4-celled; stamens 8, of two lengths.
Capsule slenderly spindle-shaped, 4-celled, 6-10 mm. long, straight and appressed to the stem, very short-beaked.