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// SPECIES PROFILE · GRASS · NATIVE

Wrinkled joint-tail grass

Coelorachis rugosa

Wrinkled joint-tail grass (Coelorachis rugosa) is a grass in the — family. Native range includes AR — verified against the Lady Bird Johnson Wildflower Center native distribution database. Hardy in zones 5a–11b. Mature size 6"–4'. Blooms May–Oct.

// QUICK FACTS
Family
—
Group
grass
Native range
Native to 13 U.S. states, including AL, AR, DE, FL, GA, LA…
USDA hardiness
Zones 5a–11b
Mature size
6"–4'
Sun
—
Water
—
Bloom
May–Oct
Wildlife value
Pollinator and wildlife support
Ecological role
native species profile
Wrinkled joint-tail grass (Coelorachis rugosa)
Coelorachis rugosa — Wrinkled joint-tail grass. Photo via iNaturalist — (c) Jay Horn, some rights reserved (CC BY).

Field Notes

[ growing · ecology · siting · care ]

Wrinkled joint-tail grass (Coelorachis rugosa) is a grass in the — family. Native range includes AR — verified against the Lady Bird Johnson Wildflower Center native distribution database. Hardy in zones 5a–11b. Mature size 6"–4'. Blooms May–Oct.

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, wrinkled joint-tail grass pairs naturally with: Big Bluestem (Andropogon gerardii), Common Rush (Juncus effusus), Eastern Gamagrass (Tripsacum dactyloides), Eastern Woodland Sedge (Carex blanda).

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