Bulb often extended into a neck. Leaves 1 or many, base free or clasping the scape; blade smooth, rarely pubescent, filiform to lanceolate, margin smooth, rarely undulate, ciliate or with minute teeth. Scapes 1-3, smooth, rarely pubescent. Inflorescence a raceme; pedicels smooth, rarely pubescent, erect in bud and fruit, recurved in flower; bracts linear, lanceolate to ovate, ± acuminate. Flowers yellow-green, green, green-brown or brown. Perianth-segments fused 1/4-1/2 of their length, forming a tube; outer segments spreading outwards from near the middle, apex cucullate with glands, sometimes extended into a short to long caudate appendage; inner segments without caudate appendages, erect with only the upper part recurved, usually connivent, forming a tube inside the outer segments. Filaments flattened, inserted at the top of the tube. Ovary sessile or with a short carpophore; many ovules per locule; style as long as the ovary. Capsule sessile or shortly stalked. Seeds black, flattened, subcircular.
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