Please scroll to the bottom for more images.
Ceratopteris pteridoides (Hook.) Hieron.
Water horn fern

Ceratopteris pteridoides
Copyright by: John Kunkel Small, 1931
From Ferns of Florida (in the public domain)

Family: Pteridaceae

Group: Pteridophyte

Substrate: Freshwater Aquatic

Habit: Herb

Perennation: Perennial

Native Range: Southeastern United States (Florida, Louisiana), the West Indies, Mexico, Central America and South America.

Map of select IRC data for peninsular Florida

IRC SOUTH FLORIDA Status: Critically Imperiled

SOUTH FLORIDA Occurrence: Present

SOUTH FLORIDA Native Status: Native

SOUTH FLORIDA Cultivated Status: Cultivated

Comments: See also, IRC's report Vascular plant species of management concern in Everglades National Park (Gann 2015), page 60.

Other data on Ceratopteris pteridoides available from :

Ceratopteris pteridoides has been found in the following 5 conservation areas :
Occurrence Native Status
Corkscrew Swamp Sanctuary Reported
Dupuis Reserve Reported
Everglades National Park Present Native
Fred C. Babcock-Cecil M. Webb Wildlife Management Area Present Native
Jonathan Dickinson State Park Present Native

Ceratopteris pteridoides has been found in the following 5 counties :
Occurrence Native Status
Broward County Recorded as Present in Error
Charlotte County Native
Glades County
Miami-Dade County Possibly Extirpated Possibly Extirpated
Monroe County (Mainland) Recorded as Present in Error

Ceratopteris pteridoides has been found in the following 2 habitats :
Disturbed Wetland
Dome Swamp

All Images:

Ceratopteris pteridoides
Copyright by: John Kunkel Small, 1931
From Ferns of Florida (in the public domain)
Ceratopteris pteridoides
Copyright by: George D. Gann
Ceratopteris pteridoides
Copyright by: George D. Gann