Japan Flora: Perennial; stems 40-80 cm. long, hairy; leaves narrowly ovate-oblong to broadly lanceolate, 8-15 cm. long, 2-5 cm. wide, acuminate, those above usually clasping, the lower ones free; flowers (1-) 2-3, axillary and terminal, the pedicels usually shorter than the flowers, the tepals obliquely ascending, 2.5-3 cm. long, white with purple spots inside, acute, the outer segments oblanceolate, the inner ones narrowly so.            Aug.-Oct. Hon­shu, Shikoku, Kyushu; rather common.

var. masamunei (Makino) Masam. Plants glabrate. Kyushu (Sat­suma).