Webwhite snakeroot, ( Ageratina altissima ), also called white sanicle, poisonous North American herb of the aster family ( Asteraceae ). White snakeroot contains a toxic alcohol (tremetol), and cattle allowed to pasture on the plant may suffer muscular tremors (the “trembles”), weakness, constipation, and death. WebLeaf Arrangement: Opposite Leaf Shape: Elliptical Lanceolate Leaf Margin: Serrate Hairs Present: No Leaf Length: 3-6 inches Leaf Width: 1-3 inches Leaf Description: Pairs of …
USDA Plants Database
WebWhite Snakeroot - Ageratina altissima Above: White Snakeroot along shore of Ho-Nee-Um Pond in Madison, Wisconsin on August 21, 2024. White Snakeroot - Ageratina altissima (Potentially invasive) White Snakeroot is a hazardous native plant that grows from 1'- 5' tall. White Snakeroot prefers slightly dry to moderate moisture areas such as … WebAgeratina altissima. Aster family (Asteraceae) Description: This herbaceous perennial plant is about 1½–3' tall, branching occasionally. The light green to tan stems are terete and … fast exercise book mosley
Putnam Park Wildflowers
WebEupatorium serotinum also has 11 flowers per head, phyllaries in 3 or more series, and resinous glands, while A. altissima has 20 flowers per head, phyllaries in 2 series and it … WebMay 30, 2024 · Ageratina altissima is an invasive plant species known to threaten native plant communities in Korea. A. altissima is thought to invade shady forests from disturbed open areas; however,... WebAgeratina altissima was first described as Ageratum altissimum by Linnaeus in Species Plantarum, Vol. 2, in 1753.In 1970, R.M. King and H. Robinson reviewed the classification and renamed it under the epithet Ageratina altissima with two varieties, var. altissima and var. roanensis.. A. altissima is a perennial herb with an upright stem and clustered, … french connection boat trader stuart