Japan Flora: Stems 30-60 cm. long, setose, with slightly reflexed hairs or glabrous; leaves narrowly oblong, ovate-oblong, or broadly oblanceolate, 8-18 cm. long, 2.5- 5 cm. wide, loosely hairy, acuminate, the upper leaves clasping; flowers 1 to several in axils and at summit of stems, about 2 cm. long, the pedicels nearly as long to slightly shorter than the flowers, the tepals white, with dark purple spots inside, subacute, the outer segments broadly oblanceolate, the inner lanceolate spreading-recurved. Aug.-Oct.