Calflora
Taxon  Report   4040    
Helianthus annuus  L.
Common sunflower,  Hairy leaved sunflower, Sunflower
Helianthus annuus
© 2003 George W. Hartwell
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
Communities: weed, characteristic of disturbed places, wetland-riparian

Wetlands: Occurs usually in non wetlands, occasionally in wetlands

Habitat: disturbed

Name Status:
Accepted by JEF + PLANTS

Alternate Names:
ICPN + PLANTS: Helianthus annuus ssp. jaegeri
ICPN + PLANTS: Helianthus annuus ssp. lenticularis
PLANTS: Helianthus annuus ssp. texanus
. . .
More information about  Helianthus annuus
Nursery / seed vendor availability from CNPLX
This plant is available commercially.
Landscaping information from Calscape
Photos on PlantID.net   /   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

USDA PLANTS Profile (HEAN3)

Search the International Plants Names Index

Search efloras.org (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: http://www.calflora.org/   (Accessed: Oct 21, 2018).

The information on this page comes from diverse sources. None of the links are sponsored.