打碗花 da wan hua

Calystegia abyssinica Engler; C. acetosifolia (Turczaninow) Turczaninow, C. hederacea Wallich var. elongata Liou & Ling; Convolvulus acetosifolius Turczaninow; C. calystegioides Choisy; C. wallichianus Sprengel; Volvulus hederaceus (Wallich) Kuntze.

Plants glabrous. Stems erect when young, later shoots prostrate or twining, to 1 m. Petiole 1--5 cm; leaf blade sagittate, triangular to narrowly triangular, 2--8 X 2--7 cm including lobes; lobes abruptly spreading, with 2(or 3) acute angles, sinus with divergent sides. Lower peduncles exceeding leaves, upper peduncles shorter; bracteoles ± ovate, 0.7--1.4(--1.8) cm X (4--)6--10(--12) mm, flat, apex acute to ± obtuse. Corolla pale pink or occasionally whitish or purplish, 2--3.5 cm. Stamens 1.1--1.6(--1.9) cm; anthers 3--4 mm. Fl. Mar-Sep, fr. Jun-Sep. 2n = 22, 30.

Fields, wasteland, roadsides, river banks, often on sandy soils; 100-3500 m. Anhui, Fujian, Gansu, Guangdong, Guangxi, Guizhou, Hainan, Hebei, Heilongjiang, Henan, Hubei, Hunan, Jiangsu, Jiangxi, Jilin, Liaoning, Nei Mongol, Ningxia, Qinghai, Shaanxi, Shandong, Shanxi, Sichuan, Taiwan, Xinjiang, Yunnan, Zhejiang [Afghanistan, India, Japan, Korea, Malaysia, Mongolia, Myanmar, Nepal, Pakistan, Russia, Tajikistan; NE Africa, rarely introduced in North America]

Only one collection has ever been made in Africa, from Ethiopia, and only two or three collections have been seen from North America.