white snakeroot

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Related to white snakeroot: water hemlock, Eupatorium rugosum, Manchineel tree

white snakeroot,

North American woods perennial (Eupatorium urticifolium) of the family Asteraceae (asteraster
[Gr.,=star], common name for the Asteraceae (Compositae), the aster family, in North America, name for plants of the genus Aster, sometimes called wild asters, and for a related plant more correctly called China aster (Callistephus chinensis
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 family), having a flat-topped cluster of small white flowers. It is of the same genus as the bonesetboneset
or thoroughwort
, perennial North American herb (Eupatorium perfoliatum) of the family Asteraceae (aster family), having terminal clusters of small, chiefly white blossoms.
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 and joe-pye weedjoe-pye weed
, name for a tall North American plant (Eupatorium purpureum) of the family Asteraceae (aster family), having small, usually pinkish-purple blossoms in large terminal clusters.
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. The herbage contains tremetol, a toxic principle causing "milk sickness," or milk fever. White snakeroot is classified in the division MagnoliophytaMagnoliophyta
, division of the plant kingdom consisting of those organisms commonly called the flowering plants, or angiosperms. The angiosperms have leaves, stems, and roots, and vascular, or conducting, tissue (xylem and phloem).
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, class Magnoliopsida, order Asterales, family Asteraceae.
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References in periodicals archive ?
7: The blooming of red stonecrop, white snakeroot, and boneset, the
White snakeroot, ironweed, boneset, wingstem, tall coneflowers and gray-headed coneflowers are budding.
Tall coneflowers, Joe Pye weed, biennial gaura, white snakeroot, jumpseed and common and great ragweed mark the approach of August.
The blossoms could belong to poisonous white snakeroot.
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.