morning glory

morning-glory的词性：
n.（名词）

1. Any of numerous, usually twining vines of the related genera Argyreia, Calystegia, Convolvulus, Merremia, and Ipomoea, having funnel-shaped, variously colored flowers that close late in the day.
牵牛花：任一种番茄属的植物，通常生有孪生藤，其相关属打碗花属，旋花科 和 番茄属 开有漏斗状的各色花朵，且在一天的晚些时候合上花瓣