Taxon  Report   12729    
Parthenium hysterophorus  L.
Santa maria feverfew
Parthenium hysterophorus
© © 2015 Richard Spellenberg
Photos from
CalPhotos / Calflora
Parthenium hysterophorus
© 2016 Ron Vanderhoff
Parthenium hysterophorus
© 2015 Richard Spellenberg
Parthenium hysterophorus, a dicot, is a perennial herb that is not native to California. There is a high risk of this plant becoming invasive in California according to Cal-IPC.

Interactive Distribution Map

Observation Hotline
(observation details)

point, line, or polygon

one or more occurrences
within a 7.5-minute quadrangle

Plant Characteristics
and Associations
Parthenium hysterophorus
© 2015 Richard Spellenberg
Genus: Parthenium
Name Status:
Accepted by PLANTS

Alternate Names:
PLANTS: Parthenium lobatum
More information about  Parthenium hysterophorus
Photos on Google Images

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 20, 2019).