Japan Flora: Rhizomes glabrous, pale brown herb; rhizomes oblong, somewhat fleshy, glabrous, about 10 cm. long, 35 cm. across; steins yellowish brown, 60- 100 cm. long, terete, the scales loose, membranous, 1-2 cm. long, the lower scales short-sheathing; racemes 10-30 cm. long, many-flowered, the bracts lanceolate to linear-oblong, obtuse, membranous, weakly nerved, 7-12 mm. long, about 2 mm. wide; flowers yellowish brown, the pedicels shorter than the ovary; perianth-tube broadly ovoid, oblique at the mouth, 7-8 mm. long, slightly inflated at base, the lobes small, deltoid; lip about 2/3 as long as the tube, adnate to the under side near base, the claw short, the limb broadly ovate, obsoletely 3-lobed, the terminal lobe larger, short-fimbriate; column sub- terete, slightly broadened at tip, 6-7 mm. long; capsules ob- long-obovoid, 12-15 nun. long, short-pedicelled. Woods in mountains;
Hokkaido, Honshu; rather rare.
f. viridis (Makino) Makino. Gastrodia viridis Makino. Plant pale green; occurs with the typical phase. Formosa and China.