P. L. Fiedler & R. K. Zebell in Flora of North America (vol. 26)
Stems usually not branching, straight, scapelike, stout, 1-3 dm. Leaves: basal 1-3 dm × 5-15 mm, usually shorter than stem. Inflorescences subumbellate, 1-5-flowered; bracts 2-several, lanceolate to linear, unequal, 1-5 cm, apex acuminate; peduncle stout, becoming strongly deflexed in fruit. Flowers erect or spreading; perianth yellowish white, sometimes streaked with purple, open, campanulate; sepals shorter than petals; petals oblong-lanceolate, clawed, adaxial surface densely hairy, margins fringed laterally and moderately bearded on proximal 1/2 distal to claw with slender, flexuous hairs, apex acute or obtuse; glands short, nearly round, depressed, typically bordered proximally by dark-colored, deeply fringed membrane, adaxial surface covered with short, thick hairs; filaments shorter than or equaling anthers; anthers lanceolate, apex long-apiculate. Capsules nodding, 3-winged, ellipsoid, apex acute. Seeds light brown, irregular. 2n = 20. Flowering summer. Dry, rocky slopes in open, coniferous woods; 600--2400 m; Alta., B.C.; Idaho, Mont., Wash.
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