Taxon  Report   2325 
Conyza canadensis  (L.) Cronq.   (not an active name; please see Erigeron canadensis)
Canada horseweed,  Canadian Horseweed, horseweed
Conyza canadensis, 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
 and Associations
Conyza canadensis
© 2005 Luigi Rignanese
Conyza canadensis
© 2009 Zoya Akulova
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.]
Genus: Conyza
Subspecies and Varieties:
Conyza canadensis var. canadensis
Conyza canadensis var. glabrata
Add an Observation of  Conyza canadensis
Name Status:
Accepted by PLANTS + JM93
TJM2: accepted name: Erigeron canadensis
 NOTE: Conyza canadensis is not an active name in the Calflora species table.
 Information about  Conyza canadensis  from other sources:

Nursery availability and horticultural info on CNPLX

Photos on CalPhotos / Google Images

website references on Google

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

Original Publication citation. on the International Plants Names Index

Search (Flora of North America)

Search the Lady Bird Johnson Wildflower Center

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]. 2015. Berkeley, California: The Calflora Database [a non-profit organization].
Available:   (Accessed: Mar 27, 2015).

The information on this page comes from diverse sources. None of the links are sponsored.

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