Plants with short thick rhizomes. Roots fibrous, sometimes elongated and thickened into tubers. Leaves linear to narrowly lanceolate, lower part narrowed into a petiole-like base. Bracts small, scarious. Perianth tube none. Perianth segments free, oblong. Stamens at the base of the perianth segments. Anthers longer than the filaments, basifixed. Ovary half inferior, 3-locular with 2 ovules in each locule. Style longer than the stamens, columnar, trifid. Fruit indehiscent, with seeds bursting through the fruit wall exposing the seeds.