Calflora
Taxon  Report   4040    
Helianthus annuus  L.
Common sunflower,  Hairy leaved sunflower, Sunflower
Helianthus annuus, a dicot, is an annual herb that is native to California and and is also found elsewhere in North America and beyond.
Siskiyou Del Norte Modoc Humboldt Shasta Lassen Trinity Plumas Tehama Butte Mendocino Glenn Sierra Yuba Lake Nevada Colusa Placer Sutter El Dorado Yolo Alpine Napa Sonoma Sacramento Mono Amador Solano Calaveras Tuolumne San Joaquin Marin Contra Costa Alameda Santa Cruz Mariposa Madera San Francisco San Mateo Merced Fresno Stanislaus Santa Clara Inyo San Benito Tulare Kings Monterey San Bernardino San Luis Obispo Kern Santa Barbara Ventura Los Angeles Riverside Orange San Diego Imperial

Bloom Period
Family: ASTERACEAE  
Genus: Helianthus

Wetlands: Occurs usually in non wetlands, occasionally in wetlands

Habitat: disturbed

Communities: weed, characteristic of disturbed places, wetland-riparian

Name Status:
Accepted by JEF + PLANTS

Alternate Names:
JEF + PLANTS: Helianthus annuus ssp. jaegeri
JEF + PLANTS: Helianthus annuus ssp. lenticularis
JEF + PLANTS: Helianthus annuus var. macrocarpus
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More information about  Helianthus annuus

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]. 2020. Berkeley, California: The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: Oct 25, 2020).