Helianthus gracilentus A. Gray
Asteraceae (Aster Family)
USDA Symbol: HEGR3
Slender Sunflower is a tufted perennial with groups of stems rising from 2-6 ft. in height. Its leaves are lance-shaped and the 2 in., yellow, daisy-like flowers occur in profusion on long stalks.
Deer do not seem to eat this wildflower.
From the Image Gallery
Plant CharacteristicsDuration: Perennial
Size Notes: Up to about 6 feet tall.
Fruit: Fruit is a cypsela (pl. cypselae). Though technically incorrect, the fruit is often referred to as an achene.
Bloom InformationBloom Color: Yellow
Bloom Time: May , Jun , Jul , Aug , Sep , Oct
Native Distribution: C. & s. CA outer Coast Ranges
Native Habitat: Dry hillsides; 200-6000 ft.
Growing ConditionsLight Requirement: Sun
Soil Moisture: Dry
Soil Description: Dry soils.
Conditions Comments: Deer do not seem to eat this wildflower.
Value to Beneficial InsectsSpecial Value to Native Bees
This information was provided by the Pollinator Program at The Xerces Society for Invertebrate Conservation.
PropagationDescription: Sow seed.
Seed Treatment: No pretreatment is necessary.
Commercially Avail: yes
Find Seed or Plants
Find seed sources for this species at the Native Seed Network.
From the National Organizations DirectoryAccording to the species list provided by Affiliate Organizations, this plant is on display at the following locations:
Santa Barbara Botanic Garden - Santa Barbara, CA
Native Seed Network - Corvallis, OR
Web ReferenceWebref 37 - Calscape (2019) California Native Plant Society
Webref 38 - Flora of North America (2019) Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
Additional resourcesUSDA: Find Helianthus gracilentus in USDA Plants
FNA: Find Helianthus gracilentus in the Flora of North America (if available)
Google: Search Google for Helianthus gracilentus
MetadataRecord Modified: 2022-12-28
Research By: TWC Staff