// SPECIES PROFILE · GRASS · NATIVE

Hairy beakgrain

Diarrhena obovata

Hairy beakgrain (Diarrhena obovata) is a grass in the — family. Native range includes AR, KS, MO, OK. Hardy in zones 2b–10a. Mature size 6"–4'. Blooms Jul–Sep.

// QUICK FACTS

Family: —
Group: grass
Native range: Native to 21 U.S. states, including AR, IA, IL, IN, KS, KY…
USDA hardiness: Zones 2b–10a
Mature size: 6"–4'
Sun: —
Water: —
Bloom: Jul–Sep
Wildlife value: Pollinator and wildlife support
Ecological role: native species profile

Hairy beakgrain (Diarrhena obovata) — *Diarrhena obovata* — Hairy beakgrain. Photo via iNaturalist — no rights reserved.

Field Notes

[ growing · ecology · siting · care ]

Hairy beakgrain (Diarrhena obovata) is a grass in the — family. Native range includes AR, KS, MO, OK. Hardy in zones 2b–10a. Mature size 6"–4'. Blooms Jul–Sep.

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, hairy beakgrain pairs naturally with: Big Bluestem (Andropogon gerardii), Canada Wild Rye (Elymus canadensis), Eastern Woodland Sedge (Carex blanda), Fox Sedge (Carex vulpinoidea).