Japan Flora: Rhizomes slender, short, loosely sheathed; stems erect, 30-50 cm. long; leaves 2-4, nearly radical, rosulate narrowly oblong to broadly lanceolate, 7-20 cm. long, 1.5-4 cm. wide, ascending, abruptly acute, the upper leaves 6-8, appressed to the stem, broadly linear; spikes 7-25 cm. long, mostly rather many-flowered; bracts lanceolate, long-acuminate, 1-1.5 cm. long, 3-nerved, appressed to the ovary; flowers sessile; sepals narrowly ovate, 1-nerved, obtuse, about 3.5 mm. long; petals slightly shorter than the sepals, 1-nerved, ovate; lip 3-lobed from the oblong-cuneate, rather carnose base, the lateral lobes filiform-linear，ascending, spreading, flagelliform, the median lobe about 2 mm. long, obtuse, the spur ovoid, apiculate, about 15 mm. long; column very short.

Kyushu (Yakushima); very rare. Ryukyus and Formosa.