Distribution: Occurring east of the Cascades crest in Washington, where endemic to the Wenatchee Mountains of Kittitas and Chelan counties.
Habitat: Cliffs and talus slopes at moderate to mid-elevations in the mountains.
Conservation Status: Sensitive in Washington (WANHP)
Glandular perennial from a branched crown and short rhizomes, the slender, ascending stems up to 3 dm. long.
Leaves numerous, opposite, elliptic to ovate-lanceolate, 1-2 cm. long and 3-9 mm. broad, thin, pointed, short-petiolate or sessile.
Flowers perfect, 2-several in an open, leafy inflorescence; calyx 5-lobed, tubular, about 7.5 mm. long, 10-nerved; petals 5, purplish, the claw about 6 mm. long and the blade about 2-3 mm. long, oblong, bi-lobed to mid-length, with a small lateral tooth below each lobe; appendages very small; stamens 10; styles 3, exerted.