Herbs, perennial, scapose, from fibrous-coated corms. Leaves 1–10, strictly basal; blade linear, elongate, flat, not keeled or channeled, surrounded by fibrous sheath. Scapes 1–2, cylindrical. Inflorescences umbellate, terminal, bracteate; bracts several, white or greenish white, scarious. Flowers: perianth subrotate, narrowly oblong; tepals 6, spreading, mostly distinct, only shortly connate at base, white to greenish white or bluish, sometimes tinged with lilac, subequal; stamens 6, epitepalous, inserted near base of tepals; filaments filiform, subulate, or conspicuously dilated, sometimes overlapping or connate; anthers versatile, introrse; pistil 3-carpellate; ovary superior, sessile, 3-locular, ovules several; style persistent, clavate; stigma 3-lobed, minute; pedicel slender, not articulate. Fruits capsular, slightly lobed, globose, dehiscence loculicidal. Seeds black, angled, coat with crust. x = 7, 8, 10.