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Floristic Inventory of the Florida Keys Database Online

Helianthus debilis Nutt. subsp. debilis
East Coast dune sunflower

Helianthus debilis
Copyright by: Roger L. Hammer

Family: Asteraceae

Group: Dicot

Substrate: Terrestrial

Habit: Herb

Perennation: Perennial

Native Range: Eastern peninsular Florida and southeastern Georgia; doubtfully native to the Monroe County Keys.

IRC SOUTH FLORIDA Status: Secure

Map of South Florida Locations

SOUTH FLORIDA Occurrence: Present

SOUTH FLORIDA Native Status: Native

SOUTH FLORIDA Cultivated Status: Cultivated

Comments: Visit our Natives For Your Neighborhood website for more information and images.

FLORIDA KEYS Occurrence: Present

FLORIDA KEYS Native Status: Doubtfully Native

Map of Florida Keys Locations

Florida Keys History and Distribution: Reported in 1913 by John Kunkel Small for pinelands and sand dunes from the upper Keys to the lower Keys, but there are no other historical reports or herbarium specimens to support this.  The few known populations appear to be spreading or persisting from cultivated plants.

Other data on Helianthus debilis subsp. debilis available from :






Helianthus debilis subsp. debilis has been reported for the following 2 habitats in THE FLORIDA KEYS :
Beach Dune
Disturbed Upland


All Images:

Helianthus debilis
Copyright by: Roger L. Hammer

Helianthus debilis
Copyright by: George D. Gann

Helianthus debilis
Copyright by: Keith A. Bradley