Taxon  Report   8366 
Xanthium spinosum  L.
Spiny clotbur,  Spiny cockleburr
Xanthium spinosum
© 2010 Zoya Akulova
Click on a photo to see it bigger.
Xanthium spinosum
© 2015 Zoya Akulova
Xanthium spinosum
© 2008 Neal Kramer
Xanthium spinosum, a dicot, is an annual herb that is native to California and is also found elsewhere in North America and beyond.

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Plant Characteristics
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Bloom Period
Xanthium spinosum
© 2014 Richard Spellenberg
Genus: Xanthium
weed, characteristic of disturbed places, wetland-riparian
Habitat: disturbed [Walker]
Wetlands:Equally likely to occur in wetlands or non wetlands [U.S. Fish & Wildlife Service.]
Name Status:
Accepted by TJM2 + PLANTS + JM93
Alternate Names:
(according to)

PLANTS: Acanthoxanthium spinosum
PLANTS: Xanthium spinosum var. inerme
More information about  Xanthium spinosum
Jepson eFlora

Records from the Consortium of California Herbaria

Original Publication citation (ITIS)


Search the International Plants Names Index

Search (Flora of North America)

Search the Lady Bird Johnson Wildflower Center

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]. 2016. Berkeley, California: The Calflora Database [a non-profit organization].
Available:   (Accessed: Oct 21, 2016).

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