Japan Flora: Perennial 70-100 cm. high, reddish above the base; stems terete, simple or sparingly branched, scattered brownish pubescent; leaves many, lanceolate to oblanceolate, 6-10 cm. long, 15 mm. wide, obtuse to subacute, entire, with pale inner glands, thinly brownish pubescent on margins, the lower and often the upper subsessile; racemes terminal, to 30 cm. long, one-sided, densely many-flowered,the pedicels ascending, 4-7 mm. long, the bracts linear, as long as to slightly longer than the pedicels; calyx-segments narrowly ovate-oblong, obtuse; corolla white, 7-12 mm. across, the lobes narrowly oblong, about 4 times as long as the calyx; capsules globose, about 2.5 nun. across. June-July. Sunny hills and low elevations in the mountains.
Honshu (centr, and s. distr.); common. Korea, n. China, and Northeast China.