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Helianthus radula (Pursh) Torr. & Gray
Stiff sunflower

Family: Asteraceae

Group: Dicot

Substrate: Terrestrial

Habit: Herb

Perennation: Perennial

Native Range: Southeastern United States.

Map of select IRC data for peninsular Florida

IRC SOUTH FLORIDA Status: Critically Imperiled

SOUTH FLORIDA Occurrence: Present

SOUTH FLORIDA Native Status: Native

SOUTH FLORIDA Cultivated Status: Cultivated

Comments: For images, click on the Atlas of Florida Vascular Plants link below. See a 2019 post on the Treasure Coast Natives blog on why sunflowers bend.

Other data on Helianthus radula available from :

Atlas of Florida Vascular Plants
Helianthus radula has been found in the following 3 conservation areas :
Occurrence Native Status
Big Cypress National Preserve Present Native
Delray Beach, Lake Ida parcel Present Native, Cultivated Only
Picayune Strand State Forest Present Native

Helianthus radula has been found in the following county :
Occurrence Native Status
Collier County Native

Helianthus radula has been found in the following habitat :
Mesic Flatwoods