// SPECIES PROFILE · GRASS · NATIVE

Squarestem spikerush

Eleocharis quadrangulata

Squarestem spikerush (Eleocharis quadrangulata) is a grass in the — family. Native range includes AR, KS, MO, OK. Hardy in zones 3a–11b. Mature size 17"–2'.

// QUICK FACTS

Family: —
Group: grass
Native range: Native to 31 U.S. states, including AL, AR, CA, CT, DC, DE…
USDA hardiness: Zones 3a–11b
Mature size: 17"–2'
Sun: Full sun
Water: High · moisture-loving
Bloom: —
Wildlife value: Pollinator and wildlife support
Ecological role: native species profile

Squarestem spikerush (Eleocharis quadrangulata) — *Eleocharis quadrangulata* — Squarestem spikerush. Photo by Robert H. Mohlenbrock via Wikimedia Commons (Public domain).

Field Notes

[ growing · ecology · siting · care ]

Squarestem spikerush (Eleocharis quadrangulata) is a grass in the — family. Native range includes AR, KS, MO, OK. Hardy in zones 3a–11b. Mature size 17"–2'.

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, squarestem spikerush pairs naturally with: Common Rush (Juncus effusus), Fox Sedge (Carex vulpinoidea), Awlfruit sedge (Carex stipata), Broadleaf cattail (Typha latifolia).