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// SPECIES PROFILE · GRASS · NATIVE

Prairie false oat

Trisetum interruptum

Prairie false oat (Trisetum interruptum) is a grass in the — family. Native range includes OK — verified against the Lady Bird Johnson Wildflower Center native distribution database. Hardy in zones 2b–10b. Mature size 6"–2'. Blooms Apr–May.

// QUICK FACTS
Family
—
Group
grass
Native range
Native to AZ, CO, LA, NM, OK, TX
USDA hardiness
Zones 2b–10b
Mature size
6"–2'
Sun
—
Water
—
Bloom
Apr–May
Wildlife value
Pollinator and wildlife support
Ecological role
native species profile
Prairie false oat (Trisetum interruptum)
Trisetum interruptum — Prairie false oat. Photo via iNaturalist — (c) Cleveland Powell, some rights reserved (CC BY).

Field Notes

[ growing · ecology · siting · care ]

Prairie false oat (Trisetum interruptum) is a grass in the — family. Native range includes OK — verified against the Lady Bird Johnson Wildflower Center native distribution database. Hardy in zones 2b–10b. Mature size 6"–2'. Blooms Apr–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 false oat pairs naturally with: Big Bluestem (Andropogon gerardii), Buffalograss (Bouteloua dactyloides), Common Rush (Juncus effusus), Fox Sedge (Carex vulpinoidea).

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