Bulbs narrowly ovoid, 40-60 mm. Leaves 10-35 cm; blade green, lanceolate, margins ± wavy. Scape 12-40 cm. Inflorescences 1-8-flowered. Flowers: tepals white, proximal 1/2-2/3 bright yellow, becoming pinkish in age, lanceolate, 25-45 mm, inner auriculate at base; stamens 8-15 mm; filaments ± white, slender; anthers yellow; style ± white, 7-10 mm; stigma ± unlobed, or with lobes shorter than 1 mm. Capsules obovoid, 2-4 cm. Flowering late spring (Apr--May). Meadows, open forests, rocky ledges; of conservation concern; 2100--2500 m; Calif. Erythronium pusaterii is known only from Tulare County in the southern Sierra Nevada.