Distribution: Snake River Canyon and vicinity in Oregon, Idaho and Washington; also in the Grand Coulee of Washington.
Habitat: Cliffs and talus slopes.
Flowers: May - July
Conservation Status: Sensitive in Washington (WANHP)
Perennial from a taproot, the several stems 2-8 dm. tall, green, nearly glabrous; herbage with spreading-bristly hairs.
Basal leaved persistent, petiolate, oblanceolate to narrowly elliptic, 5-20 cm. long and 4-15 mm. wide, with short, stiff hairs; cauline leaves progressively smaller, sessile, lanceolate to linear.
Inflorescence of nearly naked false-racemes; calyx cleft to the base; corolla ochroleucous or greenish-tinged, 5-lobed, the tube slender, the limb spreading abruptly, 4-5 mm. wide; glabrous appendages opposite the corolla lobes at the top of the tube; stamens not exerted; style shorter than the nutlets.
Nutlets 4, attached to the base of the style, with marginal prickles united nearly their length to form a cup-like border; intramarginal prickles small.