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Helianthus gracilentus (Slender sunflower)
Pisapia, Robert J.

Helianthus gracilentus

Helianthus gracilentus A. Gray

Slender Sunflower

Asteraceae (Aster Family)


USDA Symbol: HEGR3

USDA Native Status: L48 (N)

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

1 photo(s) available in the Image Gallery

Plant Characteristics

Duration: Perennial
Habit: Herb
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 Information

Bloom 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 Conditions

Light Requirement: Sun
Soil Moisture: Dry
Soil Description: Dry soils.
Conditions Comments: Deer do not seem to eat this wildflower.

Value to Beneficial Insects

Special Value to Native Bees

This information was provided by the Pollinator Program at The Xerces Society for Invertebrate Conservation.


Description: 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 Directory

According 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 Reference

Webref 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 resources

USDA: Find Helianthus gracilentus in USDA Plants
FNA: Find Helianthus gracilentus in the Flora of North America (if available)
Google: Search Google for Helianthus gracilentus


Record Modified: 2022-12-28
Research By: TWC Staff

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