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Cyperus odoratus (Fragrant flatsedge)
Romfh, Peggy

Cyperus odoratus

Cyperus odoratus L.

Fragrant Flatsedge, Fragrant Sedge

Cyperaceae (Sedge Family)

Synonym(s): Cyperus acicularis, Cyperus eggersii, Cyperus engelmannii, Cyperus ferax, Cyperus ferruginescens, Cyperus longispicatus, Cyperus macrocephalus, Cyperus macrocephalus var. eggersii, Cyperus odoratus var. acicularis, Cyperus odoratus var. engelmannii, Cyperus odoratus var. squarrosus, Cyperus speciosus, Cyperus speciosus var. squarrosus, Mariscus huarmensis, Torulinium confertum, Torulinium eggersii, Torulinium odoratum


USDA Native Status: L48 (N), HI (N), PR (N), VI (N), CAN (N)


From the Image Gallery

9 photo(s) available in the Image Gallery

Plant Characteristics

Duration: Annual
Habit: Grass/Grass-like
Root Type: Fibrous
Leaf Arrangement: Alternate
Leaf Complexity: Simple
Leaf Shape: Linear
Leaf Venation: Parallel
Fruit Type: Achene
Size Notes: Up to about 4 feet tall.
Leaf: Green
Fruit: Black

Bloom Information

Bloom Color: White , Green , Brown
Bloom Time: Jun , Jul , Aug , Sep , Oct
Bloom Notes: Perianth absent. Bloom time denotes fruiting period for Cyperus spp.


USA: AL , AR , AZ , CA , CO , CT , DC , DE , FL , GA , HI , IA , IL , IN , KS , KY , LA , MA , MD , MI , MN , MO , MS , NC , ND , NE , NJ , NM , NY , OH , OK , OR , PA , RI , SC , SD , TN , TX , VA , VT , WI , WV
Canada: ON
Native Habitat: Throughout Texas in damp and disturbed areas.

Growing Conditions

Water Use: Medium
Light Requirement: Sun
CaCO3 Tolerance: Medium
Conditions Comments: Requires wet shoreline or wet clearing.


Attracts: Birds
Deer Resistant: High

National Wetland Indicator Status

This information is derived from the U.S. Army Corps of Engineers National Wetland Plant List, Version 3.1 (Lichvar, R.W. 2013. The National Wetland Plant List: 2013 wetland ratings. Phytoneuron 2013-49: 1-241). Click here for map of regions.

From the National Organizations Directory

According to the species list provided by Affiliate Organizations, this plant is on display at the following locations:

Lady Bird Johnson Wildflower Center - Austin, TX

Web Reference

Webref 38 - Flora of North America (2019) Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
Webref 23 - Southwest Environmental Information Network (2009) SEINet - Arizona Chapter

Additional resources

USDA: Find Cyperus odoratus in USDA Plants
FNA: Find Cyperus odoratus in the Flora of North America (if available)
Google: Search Google for Cyperus odoratus


Record Modified: 2023-02-03
Research By: NPC

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