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Ambrosia hispida Pursh
Beach ragweed, Coastal ragweed

Ambrosia hispida
Copyright by: Michelle Hayden
In habitat, Eleuthera, Bahamas, 2013

Family: Asteraceae

Group: Dicot

Substrate: Terrestrial

Habit: Herb

Perennation: Perennial

Native Range: Peninsular Florida, the West Indies (including Puerto Rico), southern Mexico and Central America.

Map of select IRC data for peninsular Florida

IRC SOUTH FLORIDA Status: Rare

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 click on the Atlas of Florida Vascular Plants link below for another image.

Synonyms: A. crithmifolia.

Other data on Ambrosia hispida available from :

Atlas of Florida Vascular Plants
Ambrosia hispida has been found in the following 17 conservation areas :
Occurrence Native Status
Atlantic Dunes Park Present Native
Barefoot Beach Preserve Present Native
Bill Baggs Cape Florida State Park Present Native
Cayo Costa State Park Present Native
Delnor-Wiggins Pass State Park Present Native
Delray Beach Municipal Beach Present Native
Dry Tortugas National Park Present Native
Everglades National Park Reported
Haulover Beach Park Present Native
Indian Key Historic State Park Present Native
Key West National Wildlife Refuge Present Native
Lignumvitae Key Botanical State Park Reported
Lignumvitae Key Botanical State Park, Klopp Tract Present Native
Little Hamaca Park Present Native
National Key Deer Refuge Possibly Extirpated Possibly Extirpated
Red Reef Park, including Gumbo Limbo Nature Center Present Native, Cultivated Only
Tamarind Private Dune Present Native, Cultivated Only

Ambrosia hispida has been found in the following 4 counties :
Occurrence Native Status
Collier County Native
Lee County Native
Miami-Dade County Native
Monroe County (Keys) Native

Ambrosia hispida has been found in the following 3 habitats :
Beach Dune
Coastal Strand
Disturbed Upland

All Images:

Ambrosia hispida
Copyright by: Michelle Hayden
In habitat, Eleuthera, Bahamas, 2013
Ambrosia hispida
Copyright by: Roger L. Hammer
Ambrosia hispida
Copyright by: Cara Abbott, 2023.