Herbs, perennial, scapose, from fibrous-coated corms. Leaves alternate, crowded at base; blade planate, keeled, linear, base expanded, margins entire. Scape solitary (rarely 2), cylindrical, stout, 4.5–6 dm × 7–15 mm, pithy, glaucous distally. Inflorescences umbellate, open, many-flowered, bracteate; involucral bracts 7–10, scarious, apex acuminate. Flowers: perianth 6-tepaled, funnelform, distinctly connate proximally into tube; perianth appendages arising at intersection of perianth tube and lobes; stamens 6, epitepalous; filaments inserted in distal part of perianth tube; anthers basifixed, distant from style; pistil 3-carpellate; ovary superior, stipitate, 3-locular, ovules several; style erect, slender; stigma not evidently lobed; pedicel articulate, 1.5–5 cm. Fruits capsular, rounded at apex, equaling withered perianth, dehiscence loculicidal. Seeds black, elongate, thin, flat, surface minutely and irregularly roughened, coat with crust. 2n = 33.
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