☆ a spring-blooming, North American wildflower (Sanguinaria canadensis) of the poppy family, with a single white flower and lobed leaf arising from a rootstock that yields a toxic red juice
See bloodroot in American Heritage Dictionary 4
(blŭdˈro͞otˌ, -ro͝otˌ)
noun
A perennial wildflower (Sanguinaria canadensis) native to forests in eastern North America, having a single lobed leaf, a solitary white flower in early spring, and a fleshy rootstock exuding a poisonous red sap. Also called red puccoon.