Distribution: Occurring chiefly east of the Cascades crest in Washington; southern British Columbia to Baja California, east to Idaho and Nevada.
Habitat: Dry, open places at low elevations.
Growth Duration: Annual
Conservation Status: Not of concern
Spreading-hairy annual from a taproot, the 1-several stems erect or ascending, 0.5-2.5 dm. tall.
Leaves all alternate, the basal ones tufted and persistent, 0.7-3 cm. long and 2-8 mm. wide, sessile; cauline leaves smaller, lanceolate, few and scattered.
Inflorescence of terminal, rather few-flowered racemes; calyx 3-5 mm. long; corolla tube narrow, the 5 lobes abruptly spreading, the limb 2-4 mm. wide, white; hairy appendages opposite the corolla lobes at the top of the tube; nutlets attached to the style in a small area above the base.
Nutlets usually 4, 1.5-2.5 mm. long, cruciform, with small projections in rows along the keel and arms.