Distribution: Chiefly west of the Cascade summits in Washington; Alaska south to California, east to Idaho and Montana.
Habitat: Coniferous woods, sea level to mid-elevations in the mountains.
Conservation Status: Not of concern
Perennial herbs from woody rhizomes, the stems prostrate, up to 1 m. long, often rooting, often with short, ascending branches.
Leaves opposite, short-petiolate or nearly sessile, the blade ovate to sub-rotund, 1-3.5 cm. long, usually with a few blunt teeth.
Flowers solitary in the axils on slender pedicels 5-15 mm. long; calyx about 5 mm. long with prominent ribs and 5 short, acute teeth; corolla two-lipped, the lips short, white or purplish-tinged, 7-10 mm. long; stamens 4, nearly equal, ascending under the upper lip; style 2-parted; ovary 2-celled, superior.