Eupatorium rugosum

Common Name: 
white snakeroot
Scientific Name: 
Eupatorium rugosum Houtt.    syn.  Ageratina altissima
Family Name: 
Asteraceae (Compositae) - Aster or Sunflower Family
Identification Notes
Life Cycle
native perennial, spreading by seed and rhizomes
Stems
tall, smooth, branched above
Growth Habit of White Snakeroot
Leaves
opposite, ovate to sometimes heart-shaped, square base, sharp-pointed, toothed margins, long petioles
Flowers
heads of white disk (tubulate) florets, small; terminal flat-topped clusters
Flowers of White Snakeroot
Flowers of White Snakeroot
Flowers of White Snakeroot