Erythronium klamathense

Bulbs slender, 25-40 mm. Leaves 6-17 cm; blade green, lanceolate to narrowly elliptic, ± folded along midvein, margins entire to wavy. Scape 6-20 cm. Inflorescences 1-3-flowered. Flowers: tepals 2/3 or more white, with yellow zone at base, ± pinkish in age, broadly lanceolate, 20-35 mm, inner with small auricles at base; stamens 8-14 mm; filaments white, slender; anthers ± yellow; style white, 4-9 mm; stigma ± unlobed. Capsules narrowly obovoid, 2-5 cm. 2n = 24.

Flowering late spring to summer (Apr--Jun). Montane meadows, openings in coniferous forests; 1200--1900 m; Calif., Oreg.