Perennial stemless herbs with short thick rhizomes and thick roots. Leaves sessile, crowded, linear with sheathing bases. Flowers bisexual, large, solitary, sessile, surrounded by several bracts. Sepals and petals free, indurated, almost equal, not opening widely, persistent in fruit. Stamens united with perianth segments in lower half; anthers long, basally attached, apiculate. Ovary sessile, 3-locular; ovule 1 per locule; style slender but indurated, ±as long as perianth; stigma 3-lobed. Fruit a capsule. Seeds spherical.
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