Herbs prostrate or erect to twining to several meters tall, rhizomatous [or woody at base]. Leaves subsessile to petiolate, oblong to hastate or sagittate [or rarely pedate]. Inflorescences axillary, 1-flowered [or few-flowered] cymes; bracteoles 2, sepal-like, inserted immediately below calyx, ovate and sometimes saccate, enclosing calyx [or remote from calyx and subulate or leaf-shaped], persistent. Sepals subequal, persistent. Corolla white, pink [or pale yellow], funnelform, with 5 distinct midpetaline bands, glabrous. Stamens included, equal. Pollen globose, pantoporate, not spiny. Ovary 1-loculed, 4-ovuled. Style 1, included in corolla; stigmas 2, clavate. Capsule globose, glabrous, indehiscent. Seeds 4, smooth or minutely tuberculate. Much like Convolvulus in aspect, but the bracts usually large, inserted just beneath the cal, and ± concealing it; pollen spheroidal, pantoporate with 20–40 apertures; ovary ± unilocular, the partition incomplete; stigmas oblong, ± cylindric, blunt; fls usually solitary; our spp. rhizomatous perennials. 30, widespread. Herbs prostrate or erect to twining to several meters tall, rhizomatous [or woody at base]. Leaves subsessile to petiolate, oblong to hastate or sagittate [or rarely pedate]. Inflorescences axillary, 1-flowered [or few-flowered] cymes; bracteoles 2, sepal-like, inserted immediately below calyx, ovate and sometimes saccate, enclosing calyx [or remote from calyx and subulate or leaf-shaped], persistent. Sepals subequal, persistent. Corolla white, pink [or pale yellow], funnelform, with 5 distinct midpetaline bands, glabrous. Stamens included, equal. Pollen globose, pantoporate, not spiny. Ovary 1-loculed, 4-ovuled. Style 1, included in corolla; stigmas 2, clavate. Capsule globose, glabrous, indehiscent. Seeds 4, smooth or minutely tuberculate. Much like Convolvulus in aspect, but the bracts usually large, inserted just beneath the cal, and ± concealing it; pollen spheroidal, pantoporate with 20–40 apertures; ovary ± unilocular, the partition incomplete; stigmas oblong, ± cylindric, blunt; fls usually solitary; our spp. rhizomatous perennials. 30, widespread.General Information
Source: [
Source: [
Flora of China @ efloras.org
General InformationManual of Vascular Plants of Northeastern US and Canada
General Information