white snakeroot

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Related to Ageratina altissima: Eupatorium rugosum, white snakeroot

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 ?
Familia Nombre cientifico Araliaceae Schefflera rodriguesiana Asteraceae Ageratina altissima Cirsium subcoriaceum No identificada Senecio sp.
Single-species comparisons yielded significant correlations (adjusted for multiple comparisons) for only one of the six species examined: Ageratina altissima, which was significantly positively correlated with A.
Late Summer- Spring species Summer species Fall species Arisaema dracontium Circaea lutetiana Agastache nepetoides Dodecatheon meadia Cryptotaenia canadensis Ageratina altissima Osmorhiza longistylis Galium concinnum Amphicarpaea bracteata Potentilla simplex Orbexilum onobrychis Hackelia virginiana Sanicula odorata Phytolacca americana Lactuca biennis Triosteum aurantiacum Smilax lasioneura Phryma leptostachya T.
1 Muhlenberegia sobolifera -- -- -- Desmodium glutinosum -- -- -- Aster anomalus -- -- -- Phlox divaricata -- -- -- Bromus pubescens -- -- -- Festuca subverticillata -- -- -- Sanicula canadensis -- -- -- Amphicarpaea bracteata -- -- -- Ageratina altissima -- -- -- Tradescantia ohiensis -- -- -- Lactuca canadensis -- -- -- Geum canadense -- -- -- Lespedeza intermedia -- -- -- Others -- 0.
Plants blooming later in the season include Ageratina altissima, Agrimonia spp.