Korea Flora: Deciduous shrub. Height 30-60cm. Branchlets: Upper parts die during winter, densely hairy. Leaves opposite, ovate or oblong-ovate, apex acuminate or obtuse, base broadly cuneate or truncate, 2-5cm × 1.5-3cm. Upper surface dark green and hairy, lower surface grayish-white with dense hairs, margins with 5-10 teeth. Petiole 5-20mm long. Flowers in cymes, clustered in upper leaf axils, appearing tiered. Calyx bell-shaped, deeply divided into 5 lanceolate lobes. Corolla bluish-purple, 5-6mm long, hairy outside, with the lower petal largest and finely divided. Style bifid at tip, two long stamens and style protrude from the corolla. Fruit and seeds: Spoon-shaped, flat, 2mm long, with a developed ridge in the center. Five fruits within the persistent calyx, black. Seeds with developed wings on margins.

Flowering: Late August to early October

Fruiting: Mid-September to mid-November

Distribution: Western and southern Kyushu in Japan; Gyeongsangnamdo, southern islands of Jeollanamdo, and Jeju in Korea.

Japan Flora: Perennial herb, 30-60 cm. high, woody at the base, cinereous, incurved short- pubescent; stems nearly terete, erect, simple or branched; leaves ovate, 3-6 cm. long, 1.5-3 cm. wide, subacute, broadly cuneate to rounded at base, with few coarse teeth on each side, densely short grayish pubescent beneath, the petioles 5-15 mm. long; cymes short-pedunculate, densely many-flowered; calyx 2-3 mm. long at anthesis，5-6 mm. long in fruit, deeply lobed; corolla about 7 mm. long, blue-purple, the anterior lobe larger, fimbriate; mature carpels winged, about 2 mm. long, decidu­ous with the seeds. Sept.-OcL

Kyushu (w. distr. includ­ing Tsushima). Korea, China, and Formosa.