// SPECIES PROFILE · GRASS · NATIVE

Knotgrass

Paspalum distichum

Knotgrass (Paspalum distichum) is a grass in the — family. Native range includes AR, KS, OK. Hardy in zones 3a–13a. Blooms Jul–Aug.

// QUICK FACTS

Family: —
Group: grass
Native range: Native to 26 U.S. states, including AL, AR, AZ, CA, FL, GA…
USDA hardiness: Zones 3a–13a
Mature size: —
Sun: Full sun
Water: High · moisture-loving
Bloom: Jul–Aug
Wildlife value: Pollinator and wildlife support
Ecological role: native species profile

Knotgrass (Paspalum distichum) — *Paspalum distichum* — Knotgrass. Photo by John Robert McPherson via Wikimedia Commons (CC BY-SA 4.0).

Field Notes

[ growing · ecology · siting · care ]

Knotgrass (Paspalum distichum) is a grass in the — family. Native range includes AR, KS, OK. Hardy in zones 3a–13a. Blooms Jul–Aug.

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, knotgrass pairs naturally with: Broadleaf cattail (Typha latifolia), Yellow nutsedge (Cyperus esculentus), Tapered rosette grass (Dichanthelium acuminatum), Tapered rosette grass (Dichanthelium acuminatum var. acuminatum).