Bulbs narrowly ovoid, 40-70 mm, often forming sessile offsets. Leaves 18-35 cm; blade green, elliptic to oblanceolate, margins wavy. Scape 25-40 cm. Inflorescences 1-4(-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 10-16 mm; filaments yellow, slender; anthers cream colored; style white to cream, 9-11 mm; stigma ± unlobed or with lobes shorter than 1 mm. Capsules obovoid, 2-4 cm. Flowering spring (Apr--May). Forest openings, rocky ledges; 1300--1400 m; Calif. Erythronium taylorii is known only from Tuolumne County in the central Sierra Nevada.