Taxon  Report   9990 
Helianthus petiolaris  Nutt.
Prairie sunflower
Helianthus petiolaris
© 2010 Ron Wolf
Click on a photo to see it bigger.
Helianthus petiolaris
© 2015 Richard Spellenberg
Helianthus petiolaris
© 2015 Richard Spellenberg
Helianthus petiolaris, a dicot, is a perennial herb that is not native to California; it was introduced from elsewhere and naturalized in the wild.

Interactive Distribution Map

Observation Hotline
(observation details + photos)

point, line, or polygon

Plant Characteristics
and Associations

Bloom Period
Helianthus petiolaris
© 2010 Ron Wolf
weed, characteristic of disturbed places, Creosote Bush Scrub
Habitat: disturbed [Walker]
Distribution by County 

Add an Observation of  Helianthus petiolaris

Name Status:
Accepted by TJM2 + PLANTS + JM93
More information about  Helianthus petiolaris
UC Integrated Pest Management Weed Photo Gallery
(profile of this plant as an agricultural weed)

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]. 2016. Berkeley, California: The Calflora Database [a non-profit organization].
Available:   (Accessed: Oct 23, 2016).

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