Taxon  Report   2324    
Conyza bonariensis  (L.) Cronquist  
(no longer an active name)
Asthmaweed,  Flax leaved fleabane, Horseweed, South american horseweed
Conyza bonariensis, a dicot, is an annual herb that is not native to California; it has been naturalized in the wild.

Bloom Period
Genus: Conyza
Name Status:
Accepted by PLANTS

ICPN other name:
Erigeron bonariensis

Alternate Names:
PLANTS: Erigeron bonariensis
PLANTS: Erigeron crispus
PLANTS: Erigeron linifolius
. . .
NOTE: Conyza bonariensis is no longer an active name.
More information about  Conyza bonariensis
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]. 2019. Berkeley, California: The Calflora Database [a non-profit organization]. Available:   (Accessed: Oct 13, 2019).