Ann. Missouri Bot. Gard. 27: 448, plate 38, figs. 1, 2. 1940. 1940
Stems not branching, ca. 1 dm. Leaves: basal persistent, ca. 2 dm; blade lanceolate, tapering at base, flat. Inflorescences subumbellate, 2-flowered. Flowers erect; perianth open, campanulate; sepals smaller than petals; petals pink to light purplish, obovate, 35–40 mm, adaxial surface hairy only distal to gland, margins yellow-ciliate; glands bordered proximally by wide, ciliate membrane, distally by short hairs; anthers lanceolate, apex apiculate. Capsules nodding, winged, ellipsoid, ca. 1 cm, apex acute. Seeds irregular. 2n = 20.
Phenology: Flowering late spring–mid summer.
Habitat: Open areas in rocky soils
Elevation: 1000–1500 m
Of conservation concern.
Calochortus persistens is restricted to the Klamath and Cascade ranges in Siskiyou County.