Host an Event Volunteer Join Tickets

Support the plant database you love!


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.

Enter a Plant Name:
Or you can choose a plant family:
Eleocharis compressa (Flatstem spikerush)
Smith, R.W.

Eleocharis compressa

Eleocharis compressa Sull.

Flatstem Spikerush, Flattened Spikerush, Flat-stem Spike-rush, Flatstemmed Spikesedge

Cyperaceae (Sedge family)


USDA Symbol: ELCO2

USDA Native Status: L48 (N), CAN (N)


From the Image Gallery

2 photo(s) available in the Image Gallery

Plant Characteristics

Duration: Perennial
Habit: Grass/Grass-like
Fruit Type: Achene
Size Notes: Up to about 18 inches tall.
Fruit: Achenes yellow-brown or dark brown.

Bloom Information

Bloom Color: Brown
Bloom Time: Apr , May , Jun , Jul , Aug , Sep , Oct , Nov , Dec
Bloom Notes: Perianth of 0-5 bristles. Bloom color refers to spikelets. Bloom time refers to fruiting period.


USA: AL , AR , CO , DC , GA , IA , IL , IN , KS , KY , LA , MD , MI , MN , MO , ND , NE , NJ , NM , NY , OH , OK , PA , SD , TN , TX , VA , WI , WV
Canada: AB , BC , MB , NT , ON , QC , SK
Native Habitat: Damp soil to shallow water in seasonally wet seeps and depressions in calcareous grasslands, meadows, limestone and dolomite barrens, glades, fens, ditches, waste places.

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.

Web Reference

Webref 3 - Flora of North America (2014) 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 Eleocharis compressa in USDA Plants
FNA: Find Eleocharis compressa in the Flora of North America (if available)
Google: Search Google for Eleocharis compressa


Record Modified: 2023-01-10
Research By: CBR

Go back