white snakeroot


Also found in: Dictionary, Thesaurus, Medical, Wikipedia.
Related to white snakeroot: water hemlock, Eupatorium rugosum, Manchineel tree

white snakeroot

white snakeroot, North American woods perennial (Eupatorium urticifolium) of the family Asteraceae (aster family), having a flat-topped cluster of small white flowers. It is of the same genus as the boneset and joe-pye weed. The herbage contains tremetol, a toxic principle causing “milk sickness,” or milk fever. White snakeroot is classified in the division Magnoliophyta, class Magnoliopsida, order Asterales, family Asteraceae.
The Columbia Electronic Encyclopedia™ Copyright © 2022, Columbia University Press. Licensed from Columbia University Press. All rights reserved.
Mentioned in ?
References in periodicals archive ?
7: The blooming of red stonecrop, white snakeroot, and boneset, the
In August Eupatorium rugosum (white snakeroot), Helianthus microcephalus (small wood sunflower), Pilea pumila (clearweed), Scrophularia marilandica (late figwort), Solidago caesia (blue-stemmed goldenrod), and Verbesina alternifolia (yellow ironweed) are added.
Even as white snakeroot flowers in the woods and Joe Pye Weed becomes gray with age, the Summer Triangle overhead is reminiscent of Mothers' Day dawn.
Midwestern peaches are coming in to the markets as late summer's white snakeroot is budding in the woods, and Joe Pye weed heads up in the wetlands.
The blossoms could belong to poisonous white snakeroot. And milkweed is still in bloom throughout much of the nation.
But also check for white flowers in the woods at this time of year; they could be white snakeroot, poisonous to livestock.
White snakeroot, iron-weed, boneset, wingstem, tall cone-flowers and gray-headed coneflowers are budding as the pink large-flowered mallow dies back.