Distribution: Chiefly west of the Cascades in Washington; Alaska south to California.
Habitat: Forest understory, openings, and margins at low to moderate elevations in the mountains; often where moist.
Conservation Status: Not of concern
Perennial herbs from rhizomes, the square, simple stems 7-15 dm. tall, with retrorse bristles on the angles.
Leaves opposite, pubescent on both sides with long, straight hairs, long-petiolate, gradually reduced upward, the blades narrowly deltoid-ovate to cordate-ovate, 6-15 cm. long and 2.5-8 cm. wide, with coarse, rounded teeth.
Inflorescence a series of verticels in the upper leaf axils, the leaves reduced upward to small bracts; calyx 8-11 mm. long, with soft, gland-tipped hairs, the 5 teeth broadly triangular, much shorter than the tube; corolla two-lipped, deep red-purple, the tube 15-25 mm. long, the upper lip hood-like, enclosing the 4 stamens, the lower lip 8-14 mm. long, spreading, 3-lobed, the central lobe much the larger, the tube with an internal ring of hairs; style 2-parted; ovary 2-celled, superior.