Distribution: Occurring in the Columbia River Gorge in Washington; south-central Washington to northern California.
Habitat: Open prairies to thickets, and forested or open rocky slopes.
Flowers: July - September
Growth Duration: Perennial
Conservation Status: Endangered in Washington (WANHP)
Pollination: Bumblebees, flies, wasps
Tall perennial herbs from thick rhizomes, the unbranched stems grey-wooly above, 10-17 dm. tall.
Leaves numerous, alternate, cauline, oblong-elliptic, up to 23 cm. long and 12 cm. broad.
Inflorescence a diffusely-branched panicle 2-5 dm. long, comprised of numerous grey-wooly racemes; pedicels 5-15 mm. long; perianth yellowish-white, saucer-shaped; tepals 6, distinct, broadly ovate, 6-9 mm. long, not clawed, somewhat fringed; stamens 6, equal to the tepals.
Capsule 2-3 cm. long, oblong-ovoid, woolly.