Japan Flora: Rhizomes fusiform, 2-3.5 cm. long, to 5 mm. across, cross-lined, with unicellular hairs; stems terete, 3-4 cm. long, with 2 or 3 scales; flowers usually 2, about 2 cm. long, tubular, the bracts broadly ovate, slightly clasping, about 4 mm. long; perianth tube violet-brown, about 20 mm. long, 12 mm. across, narrowed to the base, broadest above the middle, the outer lobes ovate, the terminal lobe narrower, slightly retuse, the lateral lobes acuminate, obsoletely rugulose, the inner lobes oblong, about 3 mm. long, obtuse; lip about 9 mm. long, 5.5 mm. wide, the claw short, adnate to base of the perianth-tube, with a globose appendage on each side at the apex, the limb broadly ovate, obtuse, with 4 crispate ridges within, the inner ridges disappearing on the lower half, the outer ridges disappearing on the upper half; column about 7 mm. long, lanceolate. May. Woods;

Honshu (Kii Prov.), Shikoku, Kyushu; very rare.