Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east across North America to the Atlantic Coast.
Habitat: Dry, open areas, gen in valleys and at lower elevations in the mountains.
Conservation Status: Not of concern
Perennial herbs with milky juice, the branched stems 2-6 dm. tall, glabrous or pubescent.
Leaves opposite, entire, spreading, sub-sessile to petiolate, ovate-lanceolate to ovate, obtuse to acute at the tip and rounded to cordate at the base, 4-8 cm. long.
Inflorescence of terminal and axillary cymes; calyx divided nearly to the base, the 5 lobes lanceolate, about as long as the corolla tube; corolla 4.5-6 mm. long, bell-shaped, pinkish, the 5 lobes spreading; there are triangular, awl-shaped appendages alternate with the bases of the 5 stamens in the corolla tube; style very short, enlarged; ovary superior.
Follicles 2, elongate, 7-14 cm. long, pendulous.