Ageratina altissima

Common Names: White snakeroot, richweed, white sanicle, tall boneset
Category: Plants
Sub-category: Aster family

Plants are upright or sometimes ascending, growing to 1.5 meters tall, producing single or multi-stemmed clumps. The flowers are a clean white color and after blooming, small seeds with fluffy white tails are released to blow in the wind.

They are found in woods and brush thickets where they bloom mid to late summer or fall. Can also be found in open shady areas with open bare ground.

Primary Flower Color: White
Secondary Flower Color: White
Edible Notes: Poisonous.
Warnings: Poisonous. White snakeroot contains the toxin tremetol; when the plants are consumed by cattle, the meat and milk become contaminated with the toxin. When milk or meat containing the toxin is consumed, the poison is passed onto humans.