Taxon  Report   11666    
Erigeron bonariensis  L.
Flax-leaved horseweed
Erigeron bonariensis
© 2009 Neal Kramer
Photos from
CalPhotos / Calflora
Erigeron bonariensis
© 2009 Neal Kramer
Erigeron bonariensis, a dicot, is an annual herb that is not native to California; it was introduced from elsewhere and naturalized in the wild.

Interactive Distribution Map

Observation Hotline
(observation details)

point, line, or polygon

Plant Characteristics
and Associations

Bloom Period
Erigeron bonariensis
© 2008 Jorg Fleige
Genus: Erigeron
Wetlands: Occurs usually in non wetlands, occasionally in wetlands
Name Status:
Accepted by JEF

PLANTS accepted name:
Conyza bonariensis

Alternate Names:
ICPN: Conyza bonariensis
More information about  Erigeron bonariensis
Nursery / seed vendor availability from CNPLX
Commercial availability unknown.
Photos on   /   Google Images
Jepson eFlora

Records from the Consortium of California Herbaria


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]. 2018. Berkeley, California: The Calflora Database [a non-profit organization].
Available:   (Accessed: Dec 10, 2018).

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