Plants 10–30(–40) cm. high.. Rhizome short, vertically moniliform, densely covered with fibrous remains of old leaf-bases; roots spongy and fusiform.. Cataphylls and leaves sheathing; leaves rosulate, linear-lanceolate, rarely broadly lanceolate, glabrous, up to 15(–30) cm. long, 5–10(–25) mm. wide; margins often undulate.. Peduncle without leaves, slender, terete, 5–20(–30) cm. long.. Inflorescence a simple raceme, elongated to ± capitate; rhachis pubescent; floral bracts lanceolate, 2–5 mm. long.. Pedicels articulated at the apex, pubescent, 4–6 mm. long, solitary at the nodes, in robust specimens sometimes 2-flowered.. Perianth white, greenish keeled on the outside, slightly urceolate to star-shaped; tepals (4–)6–9 mm. long, 2–2.5 mm. wide, 1-veined.. Stamens slightly shorter than the tepals; filaments filiform, 4–6 mm. long; anthers 2–3 mm. long.. Style declinate.. Capsule triquetrous, emarginate, 3–5 mm. long, 4–5.5 mm. wide.. Seeds disc-shaped, ± 2.5 mm. in diameter.
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