Japan Flora: Dark green glabrous evergreen perennial from stout creeping to ascending rhizomes and thick adventitious roots; leaves tufted, 2-ranked, lanceolate to oblanceolate, coriaceous, 30-50 cm. long, 3-5 cm. wide, gradually narrowed to both ends, subacuminate at the apex3 abruptly dilated at the base, the midrib slightly elevated beneath; scapes 10-20 cm. long, stout, naked or 1-scaled; spike 2-3.5 cm. long, narrowly oblong, densely many-flowered; flowers pale yellow, sessile, about 5 mm. across, the bracts membra-nous, relatively small, broadly deltoid, obtuse, the perianth-lobes relatively short, incurved; fruit globose, red, rarely yel-low, about 8 mm. in diameter. May-June. Thickets and woods in the warmer parts;
Honshu (Tokaido Distr. and westw.), Shikoku, Kyushu. China.