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Taxon  Report  
Helianthus gracilentus  A. Gray
Slender sunflower
Helianthus gracilentus is a perennial herb that is native to California, and found only slightly beyond California borders.
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
Genus: Helianthus
Family: Asteraceae  
Category: angiosperm  
PLANTS group:Dicot
Jepson eFlora section: eudicot

Habitat: slopes

Communities: Yellow Pine Forest, Chaparral

Name Status:
Accepted by JEF + PLANTS

Information about  Helianthus gracilentus from other sources
Nursery availability from CNPLX
This plant is available commercially.
Jepson eFlora


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[Wikipedia] Range, Description: Helianthus gracilentus is a species of sunflower known by the common name slender sunflower.[1] It is native to central and southern California (from Napa County to San Diego County)[1] and Baja California,[2] where it is a member of the dry wildfire-prone chaparral ecosystem. Helianthus gracilentus is a perennial herb growing from a thick taproot to heights anywhere between one half and two meters (20 to 60 inches). The lance-shaped, pointed leaves are smooth-edged or slightly toothed and up to about 11 centimeters (4.4 inches) long. The long, slender stems and foliage are covered in rough hairs. The inflorescence bears flower heads with an array of short, hairy phyllaries behind a thick center of yellow to red-brown disc florets. The golden ray florets around the edge are one to three centimeters (0.4 to 1.2 inches) long.[2] (contributed by Mary Ann Machi)

Suggested Citation
Calflora: Information on California plants for education, research and conservation, with data contributed by public and private institutions and individuals. [web application]. 2024. Berkeley, California: The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: 05/20/2024).