Taxon  Report   4040 
Helianthus annuus  L.
Hairy leaved sunflower,  Sunflower, common sunflower
Helianthus annuus, a dicot, is an annual herb that is native to California and is also found elsewhere in North America and beyond.

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 Plant Characteristics
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Bloom Period
Helianthus annuus
© 2003 George W. Hartwell
Helianthus annuus
© 2010 Louis-M. Landry
Helianthus annuus
© 2007 Louis-M. Landry
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.]
Genus: Helianthus
Add an Observation of  Helianthus annuus
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
 Information about  Helianthus annuus  from other sources:

Nursery availability and horticultural info on CNPLX

Photos on CalPhotos / Google Images

website references on Google

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

Jepson eFlora (TJM2)

Records from the Consortium of California Herbaria

Original Publication citation. on the International Plants Names Index

Search (Flora of North America)

Search the Lady Bird Johnson Wildflower Center

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]. 2015. Berkeley, California: The Calflora Database [a non-profit organization].
Available:   (Accessed: Mar 29, 2015).

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

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