Japan flora: Rhizomes short; leaves few, elliptic to ovate, to 20 cm. long, 10 cm. wide, abruptly acuminate, rounded at base, puberulent beneath, the petioles 7-10 cm. long; scapes 30-40 cm. long, densely puberulent above, with 1 or 2 scales; racemes 8-10 cm. long, many-flowered, densely puberulent, the bracts spreading or reflexed, narrowly ovate, few-nerved; flowers white; sepals broadly ovate to broadly obovate, about 8 mm. long, subobtuse, spreading, with minute brown pubescence outside; petds rounded-rhombic, about 6 mm. long, obtuse; lip with a relatively large 5-lobed callosity; spur shorter than the sepals.