a perennial wildflower(Sanguinaria canadensis),native to forests in eastern North America and having a fleshy rootstock exuding a poisonous red sap,a single lobed leaf,and a solitary white flower in early spring

• 一种多年生的野生植物（美洲血根草），原产于北美洲东部的森林，根茎鲜艳，叶汁红色且有毒，叶单生，早春开白色单花