Japan Flora: Erect, glabrous perennial; stems nearly simple, 40-100 cm. long, loosely leaved; leaves rather thick, ascending, narrowly lanceolate to linear, 6-12 cm. long, 4-15 mm. wide, acuminate at both ends, deep green above, whitish beneath, slightly recurved and scabridulous on margin, the petioles 1-3 mm. long; peduncles axillary and terminal, slightly branched; cymes rather loosely flowered, the pedicels slender; calyx-segments broadly lanceolate; corolla yellow-brown, the lobes narrowly ovate, 7-8 mm. long, gla­brous; corona-lobes ovate, obtuse, erect, slightly shorter than the gynostegium; follicles narrowly lanceolate, 6-8 cm. long; seeds narrowly ovate, 4-5 mm. long, entire, narrowly winged, smooth. July-Aug. Grassy slopes in hills and mountains.

Hokkaido, Honshu, Shikoku, Kyushu; rather common. Korea, Manchuria, China, and Dahuria.