Taxon  Report   119    
Ageratina occidentalis  (Hook.) R. M. King & H. Rob.
Western eupatorium,  Western joepiweed, Western snakeroot
Ageratina occidentalis, a dicot, is a perennial herb that is native to California, is also found outside of California, but is confined to western North America.

Bloom Period
Genus: Ageratina
Communities: Yellow Pine Forest, Red Fir Forest, Lodgepole Forest, Redwood Forest, Douglas-Fir Forest
Name Status:
Accepted by JEF + PLANTS

Alternate Names:
PLANTS: Eupatorium occidentale
More information about  Ageratina occidentalis
Nursery availability from CNPLX
This plant is available commercially.
Jepson eFlora


Suggested Citation
Calflora: Information on California plants for education, research and conservation, with data contributed by public and private institutions and individuals, including the Consortium of California Herbaria. [web application]. 2019. Berkeley, California: The Calflora Database [a non-profit organization]. Available:   (Accessed: Jun 15, 2019).