Any of various fleshy plants of the genus Portulaca,especially P. grandiflora of South America,cultivated for its showy,colorful flowers that open only in sunlight.
英
美
- 半枝莲,任一种马齿苋属的肉质植物,尤指南美的大花马齿苋,因其绚丽多彩的花朵而种植,花朵只在阳光下开放。