Taxon  Report   4040 
Helianthus annuus  L.
Common sunflower,  Hairy leaved sunflower, Sunflower
Helianthus annuus
© 2007 Louis-M. Landry
Click on a photo to see it bigger.
Helianthus annuus
© 2010 Neal Kramer
Helianthus annuus
© 2010 Louis-M. Landry
Helianthus annuus, a dicot, is an annual herb that is native to California and is also found elsewhere in North America and beyond.

Interactive Distribution Map

Observation Hotline
(observation details + photos)

point, line, or polygon

Plant Characteristics
and Associations

Bloom Period
Helianthus annuus
© 2003 George W. Hartwell
Genus: Helianthus
weed, characteristic of disturbed places, wetland-riparian
Habitat: disturbed [Walker]
Wetlands:Equally likely to occur in wetlands or non wetlands [U.S. Fish & Wildlife Service.]
Name Status:
Accepted by TJM2 + PLANTS + JM93
Alternate Names:
(according to)

PLANTS: Helianthus annuus ssp. jaegeri
PLANTS: Helianthus annuus ssp. lenticularis
PLANTS: Helianthus annuus ssp. texanus
PLANTS: Helianthus annuus var. lenticularis
PLANTS: Helianthus annuus var. macrocarpus
PLANTS: Helianthus annuus var. texanus
PLANTS: Helianthus aridus
PLANTS: Helianthus lenticularis
More information about  Helianthus annuus
Nursery / seed vendor availability from CNPLX
This plant is available commercially.
Photos on CalPhotos / Google Images
Photos and ID tips from

UC Integrated Pest Management Weed Photo Gallery
(profile of this plant as an agricultural weed)

Jepson eFlora

Records from the Consortium of California Herbaria

Original Publication citation (ITIS)


Search the International Plants Names Index

Search (Flora of North America)

Search the Lady Bird Johnson Wildflower Center

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 26, 2016).

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