Madagascar periwinkle

madagascar-periwinkle的词性：
n.（名词）

1. A perennial plant (Catharanthus roseus) native to Madagascar and India, having pink or white flowers with a salverform corolla and opposite leaves. It is poisonous to domestic animals and is the source of certain substances used in the treatment of cancer. Also called rose periwinkle
长春花：一种多年生植物（白长春花 长春花属） 原生于马达加斯加和印度，在高脚碟状花冠上开粉红或白色花朵，有对生叶。此花对家畜有毒，可以从该花中提取治疗癌症的某种物质 也作 rose periwinkle