Japan Flora: Rhizomes tuberous, rather irregular, 3-8 mm. in diameter; leaves linear, 10-25 cm. long, usually broadest above the middle, 2-4 mm. wide, 3-5(-7)-nerved, long-acuminate, membranous at base, with scattered long yellowish white hairs; scapes slender, 3-10 cm. long, 1- to 2-flowered, long- pilose, the bracts filiform, 5-8 mm. long; flowers short-pedi- celled, long-pilose outside, yellow, the perianth-segments deltoid-lanceolate, subacute, few-nerved, 4-6.5 mm. long; anthers about 1.3 mm. long, obtuse, shallowly 2-lobed at base; capsules oblong, narrowed below, 6-8 mm. long; seeds globose, black­brown, about 1.2 mm. across, lusterless, densely muricate with subrounded mammillae, the appendage short. Apr.-May. Sunny slopes and thickets in the foothills.

Honshu (Rikuzen Prov. and sou th w.), Shikoku, Kyushu; rather rare. China, India, and Malaysia.