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Floristic Inventory of the Florida Keys Database Online

Cyperus fuligineus Chapm.
Limestone flatsedge

Cyperus fuligineus
Copyright by: Lilly Anderson-Messec (2021) via iNaturalist

Family: Cyperaceae

Group: Monocot

Substrate: Terrestrial

Habit: Herb

Perennation: Perennial

Native Range: South Florida and the West Indies.

NatureServe Global Status: Rare

State of Florida Status: Endangered

Florida Natural Areas Inventory State Status: Critically Imperiled

IRC SOUTH FLORIDA Status: Critically Imperiled

Map of select IRC data for peninsular Florida

SOUTH FLORIDA Occurrence: Present

SOUTH FLORIDA Native Status: Native

South Florida History and Distribution: Ranked as critically imperiled in Rare Plants of South Florida (Gann et al. 2002; pp 406-408) based on four occurrences in three protected areas (Long Key State Park; National Key Deer Refuge, Snake Creek Hammocks) and one non-protected area (Valhalla Rock Barren Site). It was also recorded at Curry Hammocks State Park in 2021.

SOUTH FLORIDA Cultivated Status: Not Cultivated

Comments: For an illustration, visit the Flora of North America website.

FLORIDA KEYS Occurrence: Present

FLORIDA KEYS Native Status: Native

IRC FLORIDA KEYS Status: Critically Imperiled

Map of select IRC data for the Florida Keys

Florida Keys History and Distribution: First collected between 1838 and 1853 by John Loomis Blodgett on the island of Key West.  Reported in 1913 by John Kunkel Small for hammocks and sandy places on the island of Key West.  We consider this native and extant from the upper Keys to the lower Keys.  For more information on C. fuligeneous in the Florida Keys, see IRC's species account.

Other data on Cyperus fuligineus available from :


Cyperus fuligineus has been reported from the following 3 conservation areas in the FLORIDA KEYS :
Occurrence Native Status
Long Key State Park Present Native
National Key Deer Refuge Present Native
Snake Creek Hammocks, Florida Keys Wildlife and Environmental Area Present Native




Cyperus fuligineus has been reported for the following 3 habitats in THE FLORIDA KEYS :
Coastal Berm
Keys Cactus Barren
Rockland Hammock


All Images:

Cyperus fuligineus
Copyright by: Lilly Anderson-Messec (2021) via iNaturalist

Cyperus fuligineus
Copyright by: Lilly Anderson-Messec (2021) via iNaturalist

Cyperus fuligineus
Copyright by: Lilly Anderson-Messec (2021) via iNaturalist