Bulb of 2 scales, ovoid, 1--1.5 cm in diam. Stem 20--50(--100) cm. Leaves 5--10(--20), usually opposite, sometimes middle and distal ones also whorled and alternate; leaf blade linear to linear-lanceolate, 5--13 cm × 3--7(--12) mm, apex sometimes curved. Inflorescence 1(or 2)-flowered; bracts 3, apex often curved. Flower nodding, campanulate; pedicel 2--4 cm. Tepals yellowish green, densely spotted purple, narrowly oblong or obovate-oblong, 2.5--5 × 0.6--1.8 cm; nectaries slightly projecting abaxially. Stamens ca. 3/5 as long as tepals; filaments slightly papillose distally. Style 3-lobed; lobes 2--4 mm. Capsule winged; wings 0.5--2 mm wide. Fl. May--Jun, fr. Jun--Jul. 2 n = 24*.