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Plant Database

Search for native plants by scientific name, common name or family. If you are not sure what you are looking for, try the Combination Search or our Recommended Species lists.

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Cyperus onerosus (Plains flatsedge)
Loughmiller, Campbell and Lynn

Cyperus onerosus

Cyperus onerosus M.C. Johnst.

Plains Flatsedge

Cyperaceae (Sedge Family)

Synonym(s):

USDA Symbol: CYON

USDA Native Status: L48 (N)

 

From the Image Gallery

2 photo(s) available in the Image Gallery

Plant Characteristics

Duration: Perennial
Habit: Grass/Grass-like
Root Type: Fibrous
Leaf Arrangement: Alternate
Leaf Complexity: Simple
Leaf Shape: Linear
Leaf Venation: Parallel
Inflorescence: Spikelet
Fruit Type: Achene
Size Notes: Up to about 2 feet tall.

Bloom Information

Bloom Color: Not Applicable
Bloom Time: May , Jun , Jul , Aug , Sep
Bloom Notes: Perianth absent. Bloom time refers to fruiting period.

Distribution

USA: TX

National Wetland Indicator Status

Region:AGCPAKAWCBEMPGPHIMWNCNEWMVE
Status: FACW FACW
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.

Web Reference

Webref 3 - Flora of North America (2014) Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.

Additional resources

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

Metadata

Record Modified: 2022-10-10
Research By: TWC Staff

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