// SPECIES PROFILE · GRASS · NATIVE

Marsh flatsedge

Cyperus pseudovegetus

Marsh flatsedge (Cyperus pseudovegetus) is a grass in the — family. Native range includes AR, KS, MO, OK. Hardy in zones 5a–11b. Mature size 1"–32".

// QUICK FACTS

Family: —
Group: grass
Native range: Native to 22 U.S. states, including AL, AR, DC, DE, FL, GA…
USDA hardiness: Zones 5a–11b
Mature size: 1"–32"
Sun: Full sun
Water: High · moisture-loving
Bloom: —
Wildlife value: Pollinator and wildlife support
Ecological role: native species profile

Marsh flatsedge (Cyperus pseudovegetus) — *Cyperus pseudovegetus* — Marsh flatsedge. Photo by ncwetlands.org via Wikimedia Commons (CC0).

Field Notes

[ growing · ecology · siting · care ]

Marsh flatsedge (Cyperus pseudovegetus) is a grass in the — family. Native range includes AR, KS, MO, OK. Hardy in zones 5a–11b. Mature size 1"–32".

Why it's on this list: native species profile. Native-range data from the Lady Bird Johnson Wildflower Center (NPIN), cross-checked against iNaturalist observations. Part of Rooted Revival's regional native plant catalog — true natives for Oklahoma, Arkansas, Missouri and Kansas.

Companion Planting

[ guild · polyculture · cross-layer pairings ]

In the same native range, marsh flatsedge pairs naturally with: Big Bluestem (Andropogon gerardii), Common Rush (Juncus effusus), Eastern Gamagrass (Tripsacum dactyloides), Eastern Woodland Sedge (Carex blanda).