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.
Rob.; SYN: Eupatorium rugosum Houtt.; White Snakeroot; C = 2: BSUH 16582, 16583.
Species associated with woodlands, including Ageratina altissima (white snakeroot) and the woody vine Toxicodendron radicans (poison ivy) were dominant.
White snakeroot (Ageratina altissima, formerly Eupatorium rugosum) killed Abraham Lincoln's mother, but not directly.
White snakeroot Ageratina altissima (L.) King &
The herbaceous plants in this community include Carex spp., sedges; Elymus canadensis, Canada wild rye; Ageratina altissima, white snakeroot; Muhlenbergia spp., muhly grasses; Sanicula canadensis, Canada sanicle; and Viola sororia, sister violet.
davisi, only registered one egg per scar, and, in late fall, found the fifth instars feeding on several plants, including common anemone (Anemone virginiana L.), white snakeroot (Eupatorium rugosum Houttuyyn), round-leafed cat-brier (Smilaxritundifolia L.) and blackberry (Rubus sp) after the water lilies died.