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Poorland Flatsedge

Cyperus compressus

Last reviewed: June 2026

Poorland Flatsedge (Cyperus compressus)
Photo: Forest & Kim Starr / Wikimedia Commons (CC BY 3.0)

Light

full sun

Water

low

Size

4"–16" H × 2"–8" W

Bloom

Jun, Jul, Aug, Sep, Oct

Native to

AL, AR, DE, FL and 17 more states

Poorland flatsedge is a low-growing annual sedge with narrow, grass-like leaves and small clusters of brownish flowers from summer through fall. This compact native thrives in sunny, dry conditions and poor soils where other plants struggle. It naturally reseeds each year, creating a fine-textured groundcover.

In an HOA neighborhood

Poorland 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.

  • Annual growth means gaps in coverage
  • Can appear weedy or unkempt
  • Name includes 'poorland' which suggests weedy nature

Wildlife value

This sedge provides seeds for small birds and supports various insects, though it's not a major pollinator plant. Its dense growth offers shelter for ground-dwelling beneficial insects.

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