Japan Flora: Glabrous creeping perennial, the branches terete; leaves rather thick, long-petiolate, orbicular, obovate-orbicular to elliptic, some­times orbicular-cuneate, 3-8 cm. long, 4-10 cm. wide, retuse to shallowly 2-lobed, cuneate to truncate-rounded at base, the mid­rib rather strong, the lateral nerves nearly parallel, ascending; peduncles longer than the petioles; inflorescence cymose, 1-2 (-6)-flowered, the pedicels 1-4 cm. long, flattened in fruit, the bracts small, caducous; calyx-segments membran이is，broadly elliptic to oblong, 6-8 mm. long, rounded to very obtuse, mucronate; corolla rose-purple, infundibuliform, 5-6 cm. across; ovary 2-locular, 4-ovuled; capsules about 2 cm. across, depressed-globose; seeds semiglobose, brown-villous, about 7 mm. across. Aug.-Nov. Sandy places along seashores. 

Shikoku, Kyushu. Pantropic.