Japan Flora: Leaves obliquely spreading, petiolate, ovate, 10-16 cm. long, 4.5-8 cm. wide, gradually acuminate, attenuated and subobtuse at base, lustrous above, flat, with 5-6 pairs of nerves, die margin slightly undulate; scapes about twice as long as the leaves, 50-60 cm. long; flowers disposed on one side of the scape, about 3.8 cm. long, pale purple, the pedicels about 6 mm. long, purplish, the bracts greenish.

Honshu (se. Kinki Distr.), Shikoku.