Taxon  Report   4040 
Helianthus annuus  L.
Common sunflower,  Hairy leaved sunflower, Sunflower
Helianthus annuus
© 2003 George W. Hartwell
More photos from
CalPhotos / Calflora
Helianthus annuus
© 2010 Neal Kramer
Helianthus annuus
© 2010 Louis-M. Landry
Helianthus annuus, a dicot, is an annual herb that is native to California, 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
© 2007 Louis-M. Landry
Genus: Helianthus
weed, characteristic of disturbed places, wetland-riparian
Habitat: disturbed
Wetlands: Occurs usually in non wetlands, occasionally in wetlands
Name Status:
Accepted by JEF + PLANTS + JM93
Alternate Names:
(according to)

ICPN + PLANTS: Helianthus annuus ssp. jaegeri
ICPN + PLANTS: Helianthus annuus ssp. lenticularis
PLANTS: Helianthus annuus ssp. texanus
PLANTS: Helianthus annuus var. lenticularis
ICPN + 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.
Landscaping information from Calscape
Photos on   /   Google Images
UC Integrated Pest Management Weed Photo Gallery
(profile of this plant as an agricultural weed)

Jepson eFlora

Records from the Consortium of California Herbaria

ITIS Original Publication citation


Search the International Plants Names Index

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]. 2018. Berkeley, California: The Calflora Database [a non-profit organization].
Available:   (Accessed: Sep 25, 2018).

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