Distribution: Occurring chiefly east of the Cascades crest in central Washington; north-central Washington to southern California, east to Colorado and Arizona.

Habitat: Open, moist to rather dry places, from the valleys and foothills to middle elevations in the mountains.

Flowers: May-July

Origin: Native

Growth Duration: Annual

Conservation Status: Sensitive in Washington (WANHP)

Slender annual, often much branched, the stem 3-10 cm. tall; herbage finely glandular-puberulent.

Leaves opposite, small and rather numerous, linear to narrowly oblong, mostly sessile and entire, 1- to 3-nerved from the base, up to 2 cm. long.

Flowers solitary in the leaf axils on pedicels under 1 cm. long, spreading and up-turned at the tip; calyx glandular-puberulent, 3-5 mm. long, the 5 short teeth rounded; corolla yellow, faintly spotted, 4-8 mm. long, only slightly bilabiate, the 5 lobes equal, notched at the tip, the throat narrow, under 2 mm. wide; style longer than the calyx; stamens 4.

Capsule.