// SPECIES PROFILE · GRASS · NATIVE

Prairie wedgescale

Sphenopholis obtusata

Prairie wedgescale (Sphenopholis obtusata) is a grass in the — family. Native range includes AR, KS, MO, OK. Hardy in zones 2a–13a. Mature size 6"–4'. Blooms Mar–May.

// QUICK FACTS

Family: —
Group: grass
Native range: Native to 50 U.S. states, including AL, AR, AZ, CA, CO, CT…
USDA hardiness: Zones 2a–13a
Mature size: 6"–4'
Sun: Part shade
Water: Medium
Bloom: Mar–May
Wildlife value: Pollinator and wildlife support
Ecological role: native species profile

Prairie wedgescale (Sphenopholis obtusata) — *Sphenopholis obtusata* — Prairie wedgescale. Photo by Robert H. Mohlenbrock via Wikimedia Commons (Public domain).

Field Notes

[ growing · ecology · siting · care ]

Prairie wedgescale (Sphenopholis obtusata) is a grass in the — family. Native range includes AR, KS, MO, OK. Hardy in zones 2a–13a. Mature size 6"–4'. Blooms Mar–May.

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 wedgescale 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).