Japan Flora: White crisped-hairy on the stems, the nerves of both leaf surfaces, and the inflorescence; stems simple or sparingly branched, often somewhat scandent, 30-80 cm. long; leaves elliptic, elliptic-ovate, or obovate, 3-10 cm. long, 2-7 cm. wide, rounded to obtuse and often mucronate, rounded at base, the petioles 3-10 mm. long; inflorescence umbellate, sometimes sparingly branched, pedunculate or subsessile, rather densely flowered, the pedicels 5-10 mm. long; call­segments broadly lanceolate; corolla about 8 mm. across, deeply 5-lobed, creamy, the tube shorter than the calyx, the lobes narrowly ovate, 4-5 mm. long, glabrous on both sides; corona-lobes obovoid-orbicular, nearly as long as the gynosteg- ium; follicles broadly lanceolate, 5-6 cm. long, about 1.5 cm. across, glabrous; seeds broadly ovate, 8-10 mm. long, narrowly winged. May-July. Thickets and grassy slopes near sea­shores;

Honshu, Shikoku, Kyushu; rather common.Korea and China.

Japan Flora: Somewhat crisped-hairy; stems slender, erect on lower half, much elongate and scandent, 40-100 cm. long; leaves of the lower erect portion larger, membranous, broadly lanceo­late to narrowly oblong-ovate, 5-12 cm. long, 1-2 (-3) cm. wide, gradually acuminate, rounded to shallowly cordate-trun­cate at base，the petioles 2—4 mm. long; inflorescence in upper axils; flowers yellow, 7-8 mm. across, few, in umbels, the peduncles nearly absent, the pedicels 3-4 mm. long, usually shorter than the flowers; corolla-lobes narrowly ovate, glabrous on both surfaces, obtuse; corona-lobes depressed-deltoid, about half as long as the gynostegium; follicles broadly lanceolate, glabrous, 4-5 cm. long, 5-7 mm. wide; seeds ovate-elliptic, about 5 mm. long, winged.  July-Sept. Mountains

Hon­shu (centr. and n. distr.). Korea

f. abulcumense (Koidz.) Hara. Flowers purple.