Taxon  Report   11669    
Erigeron sumatrensis  Retz.
Tropical horseweed
Erigeron sumatrensis
© 2006 Michael Charters
Photos from
CalPhotos / Calflora
Erigeron sumatrensis
© 2006 Michael Charters
Erigeron sumatrensis
© 2017 Michelle Tollett
Erigeron sumatrensis, a dicot, is an annual herb that is not native to California.

Interactive Distribution Map

Observation Hotline
(observation details)

point, line, or polygon

Plant Characteristics
and Associations

Bloom Period
Erigeron sumatrensis
© 2018 Ron Vanderhoff
Genus: Erigeron
Name Status:
Accepted by JEF

Alternate Names:
ICPN: Conyza bilbaoana
ICPN: Conyza floribunda
ICPN: Conyza sumatrensis
More information about  Erigeron sumatrensis
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]. 2019. Berkeley, California: The Calflora Database [a non-profit organization]. Available:   (Accessed: Jan 21, 2019).