small genus of erect annual or perennial herbs native to Madagascar; widely naturalized in the tropics; formerly included in genus Vinca
双语例句
Any of several erect herbs of the genus Catharanthus,especially C. roseus,having flowers with a rose-pink or white salverform corolla and a closed throat. 长春花类植物,任何一种属于长春花属的直生草类,尤指长春花花朵有玫瑰粉色或白色的托盘状花冠。