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Woodrush Flatsedge

Cyperus entrerianus

Last reviewed: June 2026

Woodrush Flatsedge (Cyperus entrerianus)
Photo: Daderot / Wikimedia Commons (CC0)

Light

full sun

Water

medium

Size

8"–24" H × 6"–12" W

Bloom

Jun, Jul, Aug, Sep

Native to

AL, FL, GA, LA and 2 more states

Woodrush flatsedge is a native sedge that forms compact clumps of narrow, grass-like foliage. It produces small brownish flower clusters from summer through early fall and thrives in full sun with moderate water needs.

In an HOA neighborhood

Woodrush Flatsedge takes more care to keep looking intentional in a front yard. Maintenance level: low. Consider it for backyard or mid-zone beds rather than the street edge.

Works well in: backyard only.

  • Grass-like appearance may be mistaken for weeds
  • Brownish flowers lack ornamental appeal
  • Unknown dormant season appearance creates uncertainty

Wildlife value

While specific pollinator data is limited, this sedge likely provides habitat and nesting material for beneficial insects and small wildlife typical of native grassland plants.

Native range data from the USDA PLANTS Database and regional native plant society lists. Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.

Does Woodrush Flatsedge fit your yard? Open it in Pollinator Patch to check it against your sun, soil, and HOA-conscious filters.