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Flatleaf flatsedge
Cyperus planifolius
Cyperaceae
 

Copyright by: George D. Gann

General Landscape Uses: Primarily recommended for natural landscapes and habitat restorations.

Ecological Restoration Notes: A somewhat weedy element of open, coastal uplands.

Availability: Grown by enthusiasts.

Description: Medium herbaceous sedge.

Dimensions: About 2-3 feet in height; to 4 feet when in flower. Taller than broad when in flower.

Growth Rate: Fast.

Range: Monroe County Keys north along the coasts to Volulsia and Levy counties; also reported for Georgia and Alabama but the status there is uncertain; West Indies, southern Mexico, Central America and northern South America.

Map of select IRC data from peninsular Florida.

Habitats: Coastal thickets.

Soils: Occasionally inundated to moist, well-drained to moderately well-drained limestone or calcareous sandy soils, with or without humusy top layer.

Nutritional Requirements: Moderate to low; it prefers soils with organic content, but will still grow reasonably well in nutrient poor soils.

Salt Water Tolerance: Moderate; tolerates brackish water or occasional inundation by salt water.

Salt Wind Tolerance: High; can tolerate moderate amounts of salt wind without injury.

Drought Tolerance: Moderate; generally requires moist soils, but tolerant of short periods of drought once established.

Light Requirements: Full sun to light shade.

Flower Color: Maroon-red inflorescence.

Flower Characteristics: Semi-showy inflorescence.

Flowering Season: Spring-fall.

Fruit: Inconspicuous brown achene. All year.

Horticultural Notes: Can be grown from seed.

Comments: Somewhat weedy and perhaps best approached with caution.


Copyright by: George D. Gann

Copyright by: George D. Gann


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