Distribution: Southwest Alberta, southeast British Columbia, northern Idaho and northwest Montana.
Habitat: Rocky places at high elevations in the mountains, often on cliffs, ledges, or in rock crevices.
Flowers: Late June - September
Conservation Status: Review Group 1 in Washington (WANHP)
Perennial, forming dense mats with creeping, woody stems, and with scattered, erect flowering stems 0.5-1.5 dm. tall, these with short, spreading hairs.
Leaves opposite, glabrous, those of the mat short-petiolate, the blade broadly elliptic, 1-2.5 cm. long and 5-15 mm. wide; leaves of the flowering shoots sessile, more ovate, nearly as large.
Inflorescence a compact, few-flowered raceme, with simple, axillary pedicels, glandular-hairy; calyx 8-15 mm. long, the 5 segments lance-linear; corolla deep lavender, 27-40 mm. long, 1 cm. wide at the mouth, keeled on the back, glabrous outside, with long, white hairs at the base of the lower lip within; anthers long-woolly, the pollen sacs wholly dehiscent and opening wide enough to form a plane; staminode slender, shorter than the fertile filaments, long-bearded much of its length.
Capsule 8-11 mm. long.