
''Ageratina altissima'', also known as white snakeroot, richweed, or white sanicle, is a poisonous perennial herb in the family Asteraceae, native to eastern and central North America.
Similar species: Asterales
By Scott Staley
All rights reserved
Uploaded Nov 4, 2012. Captured Aug 21, 2010 13:15.
comments (2)
http://en.wikipedia.org/wiki/Ageratina_altissima
http://plants.usda.gov/core/profile?symbol=agal5
Posted 11 years ago