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Najas guadalupensis (Spreng.) Magnus
Southern waternymph

Najas guadalupensis

Family: Hydrocharitaceae

Group: Monocot

Substrate: Freshwater Aquatic

Habit: Herb

Perennation: Annual

Native Range: North America, the West Indies, Mexico, Central America and South America.

Map of select IRC data for peninsular Florida


SOUTH FLORIDA Occurrence: Present

SOUTH FLORIDA Native Status: Native

SOUTH FLORIDA Cultivated Status: Not Cultivated

Comments: For images, visit the Center for Aquatic and Invasive Plants.

Other data on Najas guadalupensis available from :

Najas guadalupensis has been found in the following 18 conservation areas :
Occurrence Native Status
Arthur R. Marshall Loxahatchee National Wildlife Refuge Present Native
Big Cypress National Preserve Present Native
Bill Baggs Cape Florida State Park Present Native
Corkscrew Swamp Sanctuary Present Native
Dupuis Reserve Present Native
Everglades and Francis S. Taylor Wildlife Management Area Present Native
Everglades National Park Present Native
Fakahatchee Strand Preserve State Park Present Native
Fern Forest Nature Center Present Native
Frog Pond/L-31 N Transition Lands Present Native
Hugh Taylor Birch State Park Possibly Extirpated Possibly Extirpated
Jonathan Dickinson State Park Present Native
Lake Okeechobee Marshes Present Native
Long Key State Park Present Native
Nicodemus Slough Present Native
Picayune Strand State Forest Present Native
Pine Jog Environmental Sciences Center Present Native
Prairie Pines Preserve Present Native

Najas guadalupensis has been found in the following 11 counties :
Occurrence Native Status
Broward County Native
Charlotte County Native
Collier County Native
Glades County Native
Hendry County Native
Lee County Native
Martin County Native
Miami-Dade County Native
Monroe County (Keys) Native
Monroe County (Mainland) Native
Palm Beach County Native

Najas guadalupensis has been found in the following 7 habitats :
Disturbed Wetland
Dome Swamp
Floodplain Swamp
River Floodplain Lake
Strand Swamp

All Images:

Najas guadalupensis