white snakeroot


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

white snakeroot

n.
A poisonous eastern North American plant (Ageratina altissima) in the composite family, having opposite, heart-shaped leaves and flat-topped clusters of small white flower heads.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.white snakeroot - American herb having flat-topped clusters of small white flower headswhite snakeroot - American herb having flat-topped clusters of small white flower heads; reputedly a cause of trembles and milk sickness; sometimes placed in genus Eupatorium
Ageratina, genus Ageratina - annual to perennial herbs or shrubs of eastern United States and Central and South America
herb, herbaceous plant - a plant lacking a permanent woody stem; many are flowering garden plants or potherbs; some having medicinal properties; some are pests
References in periodicals archive ?
Check for white flowers in the woods at this time of year; they could be white snakeroot, poisonous to livestock.
Flower gardeners around here may want to consider trumpet honeysuckle, New England aster, white snakeroot and some varieties of goldenrod, she advised.
White snakeroot (Ageratina altissima, formerly Eupatorium rugosum) killed Abraham Lincoln's mother, but not directly.
white snakeroot (Eupatorium rugosum Houttuyyn), round-leafed cat-brier (Smilaxritundifolia L.
Moseley was able to determine that the illness was caused by cattle ingesting White Snakeroot (Eupatorium rugosum).