// SPECIES PROFILE · PERENNIAL · NATIVE

French-grass

Orbexilum onobrychis

French-grass (Orbexilum onobrychis) is a perennial in the — family. Native range includes AR, MO. Hardy in zones 4b–9a. Blooms May–Jun.

// QUICK FACTS

Family: —
Group: perennial
Native range: Native to 12 U.S. states, including AR, IA, IL, IN, KY, MO…
USDA hardiness: Zones 4b–9a
Mature size: —
Sun: —
Water: —
Bloom: May–Jun
Wildlife value: Pollinator and wildlife support
Ecological role: native species profile

French-grass (Orbexilum onobrychis) — *Orbexilum onobrychis* — French-grass. Photo by Mason Brock (Masebrock) via Wikimedia Commons (Public domain).

Field Notes

[ growing · ecology · siting · care ]

French-grass (Orbexilum onobrychis) is a perennial in the — family. Native range includes AR, MO. Hardy in zones 4b–9a. Blooms May–Jun.

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, french-grass pairs naturally with: Broadleaf Arrowhead (Sagittaria latifolia), Blue-Eyed Grass (Sisyrinchium angustifolium), Butterfly Milkweed (Asclepias tuberosa), Cardinal Flower (Lobelia cardinalis).