// SPECIES PROFILE · PERENNIAL · NATIVE

Horned pondweed

Zannichellia palustris

Horned pondweed (Zannichellia palustris) is a perennial in the — family. Native range includes AR, KS, MO, OK. Hardy in zones 1a–11b.

// QUICK FACTS

Family: —
Group: perennial
Native range: Native to 48 U.S. states, including AK, AL, AR, AZ, CA, CO…
USDA hardiness: Zones 1a–11b
Mature size: —
Sun: —
Water: —
Bloom: —
Wildlife value: Pollinator and wildlife support
Ecological role: native species profile

Horned pondweed (Zannichellia palustris) — *Zannichellia palustris* — Horned pondweed. Photo by Christian Fischer via Wikimedia Commons (CC BY-SA 3.0).

Field Notes

[ growing · ecology · siting · care ]

Horned pondweed (Zannichellia palustris) is a perennial in the — family. Native range includes AR, KS, MO, OK. Hardy in zones 1a–11b.

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, horned pondweed pairs naturally with: Lady Fern (Athyrium filix-femina), Wild Strawberry (Fragaria virginiana), Yarrow (Achillea millefolium), Common selfheal (Prunella vulgaris).