Distribution: East of the Cascades in Washington; British Columbia to California, east to Colorado.
Habitat: Dry open slopes and draws, foothills to mid-elevations in the mountains
Conservation Status: Not of concern
Perennial herbs from fibrous roots and branching, woody base, the numerous, square stems simple or branched, 4-15 dm. tall, glabrous or finely puberulent.
Leaves opposite, petioles 1-5 cm. long, the blades ovate to deltoid, with rounded teeth, 4-10 cm. long and 2-8 cm. wide, glabrous or finely scabrous on both sides.
Inflorescence spike-like, 3-15 cm. long; calyx prominently veined, the 5 equal teeth 3-5 mm. long, narrowly triangular, acuminate, usually tinged with lavender-purple; corolla whitish, 10-14 mm. long, two-lipped, with short lobes; stamens 4, exerted, the upper pair longer than the lower; style slender, 2-parted; ovary superior, 2-celled
Fruit of 4 nutlets.