// SPECIES PROFILE · GRASS · NATIVE

Prairie threeawn

Aristida oligantha

Prairie threeawn (Aristida oligantha) is a grass in the — family. Native range includes AR, KS, MO, OK. Hardy in zones 2a–11b.

// QUICK FACTS

Family: —
Group: grass
Native range: Native to 43 U.S. states, including AL, AR, AZ, CA, CT, DC…
USDA hardiness: Zones 2a–11b
Mature size: —
Sun: Full sun
Water: —
Bloom: —
Wildlife value: Pollinator and wildlife support
Ecological role: native species profile

Prairie threeawn (Aristida oligantha) — *Aristida oligantha* — Prairie threeawn. Photo by Hitchcock, A.S. (rev. A. Chase). via Wikimedia Commons (Public domain).

Field Notes

[ growing · ecology · siting · care ]

Prairie threeawn (Aristida oligantha) is a grass in the — family. Native range includes AR, KS, MO, OK. Hardy in zones 2a–11b.

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, prairie threeawn pairs naturally with: Fox Sedge (Carex vulpinoidea), Awlfruit sedge (Carex stipata), Broadleaf cattail (Typha latifolia), Fox sedge (Carex vulpinoidea var. vulpinoidea).