Taxon  Report   8015    
Toxicodendron diversilobum  (Torr. & A. Gray) Greene
Poison oak,  Poisonoak
Toxicodendron diversilobum
© 2011 Robert A. Hamilton
Photos from
CalPhotos / Calflora
Toxicodendron diversilobum
© 2008 Zoya Akulova
Toxicodendron diversilobum
© 2018 Brad Christie
Toxicodendron diversilobum, a dicot, is a vine or shrub that is native to California, is also found outside of California, but is confined to western North America.

Interactive Distribution Map

Observation Hotline
(observation details)

point, line, or polygon

Plant Characteristics
and Associations

Bloom Period
Toxicodendron diversilobum
© 2008 Keir Morse
Genus: Toxicodendron
Communities: Yellow Pine Forest, Foothill Woodland, Chaparral, Valley Grassland, (many plant communities)


Arid West: Occurs usually in non wetlands, occasionally in wetlands
Mountains, Valleys and Coast: Equally likely to occur in wetlands and non wetlands

Habitat: slopes

Name Status:
Accepted by JEF + PLANTS

Alternate Names:
PLANTS: Rhus diversiloba
PLANTS: Toxicodendron radicans ssp. diversilobum
More information about  Toxicodendron diversilobum
Nursery / seed vendor availability from CNPLX
This plant is available commercially.
Landscaping information from Calscape
Photos on   /   Google Images
UC Integrated Pest Management Weed Photo Gallery
(profile of this plant as an agricultural weed)

Jepson eFlora

Records from the Consortium of California Herbaria

ITIS Original Publication citation


Search the International Plants Names Index

Search (Flora of North America)

website references from Google

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: Jan 15, 2019).