旋花（学名：Calystegia sepium）为旋花科打碗花属的植物。

多年生缠绕草本。卵形叶子互生，基部为戟形；夏季开淡红色花，花单生于叶腋，花冠漏斗状；球形蒴果；黑褐色卵圆状三棱形种子。

Calystegia sepium (larger bindweed, hedge bindweed, Rutland beauty, bugle vine, heavenly trumpets, bellbind, granny-pop-out-of-bed) (formerly Convolvulus sepium) is a species of bindweed, with a subcosmopolitan distribution throughout the temperate Northern and Southern hemispheres.