Description from Flora of China
Herbs perennial, rhizomatous. Rhizome ascending, thick, stout. Leaves basal, tufted, usually slightly distichous equitant, sessile, base dilated. Scape axillary, suberect, much shorter than leaves. Inflorescence a terminal spike, densely flowered, fleshy; bracts short, membranous. Flowers bisexual. Perianth segments connate except at apex into a globose-campanulate tube; lobes incurved, short, fleshy. Stamens 6; filaments nearly wholly adnate to perianth tube; anthers positioned distally in perianth tube, dorsifixed. Ovary globose, 3-loculed; ovules 2 per locule. Style very short or inconspicuous; stigma 3-lobed. Fruit a berry, 1-seeded.
One species: China, Japan.
(Authors: Liang Songyun (梁松筠 Liang Song-jun); Minoru N. Tamura)