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Alternanthera philoxeroides (Mart.) Griseb.
Alligatorweed

Alternanthera philoxeroides
Copyright by: Shirley Denton

Family: Amaranthaceae

Group: Dicot

Substrate: Terrestrial

Habit: Herb

Perennation: Perennial

Native Range: South America.

Map of select IRC data for peninsular Florida

FLEPPC Status: Category II Invasive

SOUTH FLORIDA Occurrence: Present

SOUTH FLORIDA Native Status: Not Native, Naturalized

SOUTH FLORIDA Cultivated Status: Not Cultivated

Comments: For more images, click on the Atlas of Florida Vascular Plants link below.

Other data on Alternanthera philoxeroides available from :

Atlas of Florida Vascular Plants
Alternanthera philoxeroides has been found in the following 26 conservation areas :
Occurrence Native Status
Allapattah Flats Wildlife Management Area Present Not Native, Naturalized
Arthur R. Marshall Loxahatchee National Wildlife Refuge Present Not Native, Naturalized
Big Cypress National Preserve Present Not Native, Naturalized
Caloosahatchee Creeks Preserve Present Not Native, Naturalized
Caloosahatchee Regional Park Present Not Native, Naturalized
Cayo Costa State Park Present Not Native, Naturalized
Dry Tortugas National Park Doubtfully Present
Dupuis Reserve Present Not Native, Naturalized
Estero Bay Preserve State Park Present Not Native, Naturalized
Everglades and Francis S. Taylor Wildlife Management Area Present Not Native, Naturalized
Everglades National Park Assumed to be Present Not Native, Naturalized
Fern Forest Nature Center Present Not Native, Naturalized
Fisheating Creek Wildlife Management Area Present Not Native, Naturalized
Frog Pond/L-31 N Transition Lands Present Not Native, Naturalized
Great White Heron National Wildlife Refuge Doubtfully Present
Holey Land Wildlife Management Area Present Not Native, Naturalized
Lake Okeechobee Marshes Present Not Native, Naturalized
Nicodemus Slough Present Not Native, Naturalized
Pine Island Ridge Natural Area Present Not Native, Naturalized
Pond Apple Slough Natural Area Present Not Native, Naturalized
Prairie Pines Preserve Present Not Native, Naturalized
Seabranch Preserve State Park Present Not Native, Naturalized
Six Mile Cypress Slough Preserve Present Not Native, Naturalized
Tree Tops Park Present Not Native, Naturalized
Wild Turkey Strand Preserve Present Not Native, Naturalized
Yamato Scrub Natural Area Present Not Native, Naturalized

Alternanthera philoxeroides has been found in the following 6 counties :
Occurrence Native Status
Broward County Not Native, Naturalized
Charlotte County Not Native, Naturalized
Glades County Not Native, Naturalized
Lee County Not Native, Naturalized
Miami-Dade County Not Native, Naturalized
Palm Beach County Not Native, Naturalized

Alternanthera philoxeroides has been found in the following 7 habitats :
Blackwater Stream
Disturbed Wetland
Floodplain Marsh
Freshwater Tidal Swamp
Slough
Strand Swamp
Swale

All Images:

Alternanthera philoxeroides
Copyright by: Shirley Denton