Taxon  Report   8367    
Xanthium strumarium  L.
Rough cockleburr
Xanthium strumarium, a dicot, is an annual herb that is native to California, and is also found elsewhere in North America and beyond.

Bloom Period
Genus: Xanthium
Wetlands: Equally likely to occur in wetlands and non wetlands

Habitat: disturbed

Communities: weed, characteristic of disturbed places, wetland-riparian

Name Status:
Accepted by JEF + PLANTS

Alternate Names:
JEF: Xanthium strumarium var. canadense
JEF: Xanthium strumarium var. glabratum
ICPN: Xanthium calvum
. . .
More information about  Xanthium strumarium
Nursery availability from CNPLX
Commercial availability unknown.
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]. 2020. Berkeley, California: The Calflora Database [a non-profit organization]. Available:   (Accessed: Feb 25, 2020).