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Floristic Inventory of the Florida Keys Database Online

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

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.

FLORIDA KEYS Occurrence: A Doubtfull Record

Map of select IRC data for the Florida Keys

Florida Keys History and Distribution: Not reported for the Florida Keys by John Kunkel Small in 1913. Reported for Great White Heron National Wildlife Refuge (Weiner, 1980) and Dry Tortugas National Park (Stoddart & Fosberg, 1981 in Reimus & Robertson, 1997), but there are no vouchers or other observations for the Florida Keys. Probably misidentifications of A. flavescens or A. maritima.

Other data on Alternanthera philoxeroides available from :


Alternanthera philoxeroides has been reported from the following 2 conservation areas in the FLORIDA KEYS :
Occurrence Native Status
Dry Tortugas National Park A Doubtfull Record
Great White Heron National Wildlife Refuge A Doubtfull Record






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Alternanthera philoxeroides
Copyright by: Shirley Denton