Stems slender and delicate, not branching, 3-15 cm. Leaves: basal persistent, 1-2 dm; blade linear, flat. Inflorescences 1-12-flowered. Flowers erect to spreading; perianth open, campanulate; sepals ca. 10 mm; petals white to light blue, lanceolate, 8-12 mm, ciliate only on margins, adaxial surface hairy only distal to gland, apex acute; glands slightly depressed, bordered proximally by ciliate membrane, distally by short hairs; anther apex acute to acuminate. Capsules nodding, angled, 1-2 cm, apex acute. Seeds irregular.

Flowering late spring. Open places in woods, meadows; of conservation concern; 1500--2000 m; Calif.

Calochortus westonii is known from the Greenhorn Mountains, Kern and Tulare counties.