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Ceratophyllum demersum L.
Hornwort, Coontail

Ceratophyllum demersum
Copyright by: Shirley Denton

Family: Ceratophyllaceae

Group: Dicot

Substrate: Freshwater Aquatic

Habit: Herb

Perennation: Perennial

Native Range: Widespread in North America, the West Indies, Mexico, Central America, South America and the Old World in both temperate and tropical regions.

Map of select IRC data for peninsular Florida

IRC SOUTH FLORIDA Status: Imperiled

SOUTH FLORIDA Occurrence: Present

SOUTH FLORIDA Native Status: Native

SOUTH FLORIDA Cultivated Status: Not Cultivated

Other data on Ceratophyllum demersum available from :

Atlas of Florida Vascular Plants
Ceratophyllum demersum has been found in the following 8 conservation areas :
Occurrence Native Status
Arthur R. Marshall Loxahatchee National Wildlife Refuge Present Native
Big Cypress National Preserve Present Native
Bill Sadowski Park Present Native
Everglades and Francis S. Taylor Wildlife Management Area Present Native
Everglades National Park Present Native
Fuchs Hammock Preserve Present Native
J.W. Corbett Wildlife Management Area Present Native
Lake Okeechobee Marshes Present Native

Ceratophyllum demersum has been found in the following 6 counties :
Occurrence Native Status
Broward County Native
Collier County Native
Hendry County Native
Miami-Dade County Native
Monroe County (Mainland) Native
Palm Beach County Native

Ceratophyllum demersum has been found in the following 3 habitats :
Disturbed Wetland
River Floodplain Lake
Swale

All Images:

Ceratophyllum demersum
Copyright by: Shirley Denton