// SPECIES PROFILE · GRASS · NATIVE

Blunt spikerush

Eleocharis obtusa

Blunt spikerush (Eleocharis obtusa) is a grass in the — family. Native range includes AR, MO, OK. Hardy in zones 2a–13a. Mature size 6"–3'.

// QUICK FACTS

Family: —
Group: grass
Native range: Native to 45 U.S. states, including AL, AR, CA, CO, CT, DC…
USDA hardiness: Zones 2a–13a
Mature size: 6"–3'
Sun: Full sun
Water: Medium
Bloom: —
Wildlife value: Pollinator and wildlife support
Ecological role: native species profile

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

Field Notes

[ growing · ecology · siting · care ]

Blunt spikerush (Eleocharis obtusa) is a grass in the — family. Native range includes AR, MO, OK. Hardy in zones 2a–13a. Mature size 6"–3'.

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, blunt spikerush pairs naturally with: Broadleaf cattail (Typha latifolia), Tapered rosette grass (Dichanthelium acuminatum), Tapered rosette grass (Dichanthelium acuminatum var. acuminatum), Western panicgrass (Dichanthelium acuminatum var. fasciculatum).