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Cyperus planifolius Rich.
Flatleaf flatsedge

Cyperus planifolius
Copyright by: George D. Gann

Family: Cyperaceae

Group: Monocot

Substrate: Terrestrial

Habit: Herb

Perennation: Perennial

Native Range: Southeastern United States, the West Indies, southern Mexico, Central America and northern South America.

Map of select IRC data for peninsular Florida

IRC SOUTH FLORIDA Status: Apparently Secure

SOUTH FLORIDA Occurrence: Present

SOUTH FLORIDA Native Status: Native

SOUTH FLORIDA Cultivated Status: Cultivated

Comments: Visit our Natives For Your Neighborhood website for more information and images.

Synonyms: C. brunneus.

Other data on Cyperus planifolius available from :

Atlas of Florida Vascular Plants
Cyperus planifolius has been found in the following 39 conservation areas :
Occurrence Native Status
Bahia Honda State Park Present Native
Barefoot Beach Preserve Present Native
Big Cypress National Preserve Present Native
Bill Baggs Cape Florida State Park Present Native
Biscayne National Park Present Native
Blowing Rocks Preserve Present Native
Cape Romano - Ten Thousand Islands Aquatic Preserve Present Native
Cayo Costa State Park Present Native
Crandon Park Present Native
Curry Hammock State Park Present Native
Dagny Johnson Key Largo Hammocks Botanical State Park Present Native
Deering Estate at Cutler Present Native
Dove Creek Hammocks, Florida Keys Wildlife and Environmental Area Present Native
Dr. Von D. Mizell-Eula Johnson State Park Present Native
Dry Tortugas National Park Present Native
Everglades National Park Present Native
Fakahatchee Strand Preserve State Park Present Native
Gopher Tortoise Preserve Present Native
Great White Heron National Wildlife Refuge Present Native
Hugh Taylor Birch State Park Present Native
J.N. Ding Darling National Wildlife Refuge Present Native
John D. MacArthur Beach State Park Present Native
John Pennekamp Coral Reef State Park Present Native
Jonathan Dickinson State Park Present Native
Jupiter Inlet Lighthouse Outstanding Natural Area Present Native
Key West National Wildlife Refuge Present Native
Lignumvitae Key Botanical State Park Present Native
Lignumvitae Key Botanical State Park, Klopp Tract Present Native
Long Key State Park Present Native
National Key Deer Refuge Present Native
Oleta River State Park Present Native
Pond Apple Slough Natural Area Present Native
Red Reef Park, including Gumbo Limbo Nature Center Present Native
Rookery Bay National Estuarine Research Reserve Present Native
Savannas Preserve State Park Present Native
St. Lucie Inlet Preserve State Park Present Native
Sugarloaf Hammocks, Florida Keys Wildlife and Environmental Area Present Native
Ten Thousand Islands National Wildlife Refuge Present Native
Windley Key Fossil Reef Geological State Park Present Native

Cyperus planifolius has been found in the following 8 counties :
Occurrence Native Status
Broward County Native
Collier County Native
Lee County Native
Martin County Native
Miami-Dade County Native
Monroe County (Keys) Native
Monroe County (Mainland) Native
Palm Beach County Native

Cyperus planifolius has been found in the following 8 habitats :
Beach Dune
Coastal Berm
Coastal Grassland
Coastal Interdunal Swale
Coastal Strand
Disturbed Upland
Rockland Hammock
Shell Mound

All Images:

Cyperus planifolius
Copyright by: George D. Gann
Cyperus planifolius
Copyright by: George D. Gann
Cyperus planifolius
Copyright by: Jay Horn via iNaturalist
Cyperus planifolius
Copyright by: Jay Horn via iNaturalist