Any of various trailing or twining, often weedy plants of the genera Calystegia and Convolvulus, having white, pink, or purple bell-shaped or funnel-shaped flowers.

• 旋花一种蔓生或缠绕的打碗花属和旋花属的蔓延植物，开白色、粉色或紫色钟状或漏斗形的花