// SPECIES PROFILE · GRASS · NATIVE

American beakgrain

Diarrhena americana

American beakgrain (Diarrhena americana) is a grass in the — family. Native range includes AR, MO. Hardy in zones 3a–9a. Mature size 6"–4'. Blooms Jun–Jul.

// QUICK FACTS

Family: —
Group: grass
Native range: Native to 13 U.S. states, including AL, AR, GA, IL, IN, KY…
USDA hardiness: Zones 3a–9a
Mature size: 6"–4'
Sun: —
Water: —
Bloom: Jun–Jul
Wildlife value: Pollinator and wildlife support
Ecological role: native species profile

American beakgrain (Diarrhena americana) — *Diarrhena americana* — American beakgrain. Photo by Chase, Agnes; Hitchcock, A. S. via Wikimedia Commons (Public domain).

Field Notes

[ growing · ecology · siting · care ]

American beakgrain (Diarrhena americana) is a grass in the — family. Native range includes AR, MO. Hardy in zones 3a–9a. Mature size 6"–4'. Blooms Jun–Jul.

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, american beakgrain pairs naturally with: Big Bluestem (Andropogon gerardii), Common Rush (Juncus effusus), Eastern Gamagrass (Tripsacum dactyloides), Eastern Woodland Sedge (Carex blanda).