Distribution: East of the Cascades in Washington; Washington south to Oregon, east to Montana.
Habitat: Open or often wooded, sometimes in rocky places, from the foothills to moderate elevations in the mountains.
Conservation Status: Critically Imperiled in Washington (WANHP)
Perennial from a branched, woody base, the clustered stems 3-10 dm. tall, usually glabrous except for the inflorescence
Leaves opposite, strongly serrate with slender teeth, the basal leaves well-developed, elliptic to deltoid-ovate, the blade up to 9 cm. long and 5 cm. wide, about equal to the petiole; cauline leaves often larger than the basal, sessile, 4-10 cm. long and 1.5-4 cm. wide.
Inflorescence of several large, loose verticillasters; calyx 2.5-5 mm. long, the 5 segments broadly lanceolate, narrowly scarious-margined; corolla blue, the paler throat with guide lines, 15-23 mm. long, the tube 4-8 mm. wide at the mouth, glandular-hairy on the outside, strongly bilabiate, the lower lip much longer than the upper, the raised portion bearded; pollen sacs 0.7-1.0 mm. long, wholly dehiscent, becoming opposite, glabrous; staminode with a recurved, bearded tip.
Capsule 4-6 mm. long.