Taxon  Report   2325 
Conyza canadensis  (L.) Cronq.  (not an active name; please see Erigeron canadensis)
Canada horseweed,  Canadian horseweed
Conyza canadensis
© 2009 Zoya Akulova
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Conyza canadensis, a dicot, is an annual herb that is native to California and is also found elsewhere in North America and beyond.

Interactive Distribution Map


Observation Hotline
(observation details + photos)



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Plant Characteristics
and Associations
Conyza canadensis
© 2005 Luigi Rignanese
Family: ASTERACEAE  
Genus: Conyza
Communities:
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 PLANTS + JM93
TJM2 accepted name: Erigeron canadensis
 
NOTE: Conyza canadensis is not an active name in the Calflora species table.
More information about  Conyza canadensis
Nursery / seed vendor availability from CNPLX
Commercial availability unknown.
Photos on CalPhotos / Google Images

UC Integrated Pest Management Weed Photo Gallery
(profile of this plant as an agricultural weed)

Records from the Consortium of California Herbaria

USDA PLANTS Profile (COCA5)

Original Publication citation (ITIS)

Search the International Plants Names Index

Search efloras.org (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: http://www.calflora.org/   (Accessed: Feb 11, 2016).

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