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White Snakeroot

Ageratina altissima (Spreng.) King & H.E. Robins.

(formerly Eupatorium rugosum Houtt.)

Asteraceae (Aster Family)

▲▼ mature flowering plants

▲▼ flowering plants

▲▼flowers

▲▼flowers


Ageratina altissima (Spreng.) King & H.E. Robins. (formerly Eupatorium rugosum Houtt.), White Snakeroot:  (Bayer Code:  EUPRU; US Code AGAL5)

         Native simple to creeping perennial, growing 1-4 feet tall that can spread by short rhizomes

         Has oval-shaped opposite, dark green to light green, triangular to oval-shaped leaves with toothed edges; petioles present; veins not real prominent

         Flowers white, in head-like structures about diameter, in small, flat-topped clusters at tips of top branches

         Contains toxins that can be toxic to grazing livestock; toxins can pass into milk, and are toxic to humans, as well

         Prefers field edges or open woodland pastures (part shade)

 

 

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Updated 19 January 2019