Plants small. Rhizomes globose to cylindric, fleshy, covered with fibers. Leaves 4--12, linear, 7--30 cm × 2--6 mm, yellow pilose, base membranous, apex narrowly acute, yellowish brown pilose. Flowering stems 2.5--10 cm or more, slender, 1- or 2-flowered, pale brown pilose; bracts 2, setaceous, small. Perianth yellow; segments oblong, 6--8 mm, brown pilose, persistent. Filaments short. Ovary 3--6 mm, pilose. Style short; stigma erect, 3-lobed. Capsule clavate, 6--12 mm, 3-valved. Seeds numerous, subglobose, tuberculate.

Forest margins, moist grassy slopes; near sea level to 2600 m. Anhui, Fujian, Guangdong, Guangxi, Guizhou, Hubei, Hunan, Jiangsu, Jiangxi, Sichuan, Taiwan, Yunnan, Zhejiang [Bhutan, Cambodia, India, Indonesia, Japan, Korea, Laos, Myanmar, Nepal, Pakistan, Papua New Guinea, Philippines, Thailand, Vietnam].