Cyperus haspan
haspan flatsedge
Family
Cyperaceae
Leaf Arrangement
basal (rosulate)
Leaf Type
no leaves
Growth Form
graminoid
Flower Color
inconspicuous
Flower Month
June - October
Height (meters)
0.1 - 0.8
Milky Sap
No
Armed/Unarmed
Unarmed
Origin
native
Lifespan
annual, perennial
Growing Season
Warm season
Wetland Class
OBL
Wetland Coefficient of Conservatism
5
Prairie Coefficient of Conservatism
2
Field Characters
Haspan flatsedge is a tufted perennial sedge, 2-7 dm tall with soft, weak, sharply triangular stems. Its inflorescence is composed of widely spaced spear-point shaped spikelets subtended by small, inconspicuous bracts. Leaves are reduced to bladeless sheaths.
Natural History
Sheathed flatsedge is rarely common and is found in moist places in Louisiana and east and southeast Texas. It is salt tolerant is may be found in brackish marsh. It is widely distributed in warm regions of the world (Correll and Johnston 1979).
Habitat
Ditches, marshes, swamps, shallow water, and low fields.