Please scroll to the bottom for more images.
Najas marina L.
Spiny waternymph

Najas marina
Copyright by: plantillustrations.org (public domain)
originally published in Sturm, J., Krause, E.H.L., Lutz, K.G., Flora von Deutschland in Abbildungen nach der Natur, Zweite auflage, vol. 4: t. 9 (1905)

Family: Hydrocharitaceae

Group: Monocot

Substrate: Freshwater Aquatic

Habit: Herb

Perennation: Annual

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

Map of Florida Locations

IRC SOUTH FLORIDA Status: Imperiled

SOUTH FLORIDA Occurrence: Present

SOUTH FLORIDA Native Status: Native

SOUTH FLORIDA Cultivated Status: Not Cultivated

Comments: For images, visit Calflora.

Other data on Najas marina available from :

Najas marina has been found in the following 7 conservation areas :
Occurrence Native Status
Big Cypress National Preserve Present Native
Bill Baggs Cape Florida State Park Present Native
Collier-Seminole State Park Recorded as Present in Error
Everglades National Park Present Native
Fakahatchee Strand Preserve State Park Present
Hugh Taylor Birch State Park Present Native
Lemon Bay Aquatic Preserve Present Native

Najas marina has been found in the following 4 counties :
Occurrence Native Status
Broward County Native
Collier County Native
Lee County Native
Miami-Dade County Native

Najas marina has been found in the following habitat :
Disturbed Wetland

All Images:

Najas marina
Copyright by: plantillustrations.org (public domain)
originally published in Sturm, J., Krause, E.H.L., Lutz, K.G., Flora von Deutschland in Abbildungen nach der Natur, Zweite auflage, vol. 4: t. 9 (1905)