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Floristic Inventory of the Florida Keys Database Online

Cyperus flavescens L.
Yellow flatsedge

Family: Cyperaceae

Group: Monocot

Substrate: Terrestrial

Habit: Herb

Perennation: Annual

Native Range: Eastern and central North America, the West Indies, Mexico, Central America, South America and the Old Wolrd.

IRC SOUTH FLORIDA Status: Rare

Map of South Florida Locations

SOUTH FLORIDA Occurrence: Present

SOUTH FLORIDA Native Status: Native

SOUTH FLORIDA Cultivated Status: Not Cultivated

Comments: For images, click on the Atlas of Florida Vascular Plants link below.

FLORIDA KEYS Occurrence: Present

FLORIDA KEYS Native Status: Doubtfully Native

Map of Florida Keys Locations

Florida Keys History and Distribution: First reported for the Florida Keys by Wilder et al. (2014) for Dagny Johnson Key Largo Hammock Botanical State Park (33986 SWF), where growing as a weed. We treat this a doubtfully native.

Other data on Cyperus flavescens available from :


Cyperus flavescens has been reported from the following conservation area in the FLORIDA KEYS :
Occurrence Native Status
Dagny Johnson Key Largo Hammocks Botanical State Park Present Doubtfully Native




Cyperus flavescens has been reported for the following 2 habitats in THE FLORIDA KEYS :
Disturbed Upland
Disturbed Wetland