// SPECIES PROFILE · PERENNIAL · NATIVE

American water plantain

Alisma subcordatum

American water plantain (Alisma subcordatum) is a perennial in the — family. Native range includes AR, KS, MO, OK. Hardy in zones 2b–11a. Mature size 6"–2'. Blooms Jun–Oct.

// QUICK FACTS

Family: —
Group: perennial
Native range: Native to 41 U.S. states, including AL, AR, AZ, CA, CO, CT…
USDA hardiness: Zones 2b–11a
Mature size: 6"–2'
Sun: Full sun
Water: High · moisture-loving
Bloom: Jun–Oct
Wildlife value: Pollinator and wildlife support
Ecological role: native species profile

American water plantain (Alisma subcordatum) — *Alisma subcordatum* — American water plantain. Photo by Robert H. Mohlenbrock. USDA NRCS. 1995. Northeast wetland flora: Field office guide to plant species. Northeast National Technical Center, Chester, PA. Courtesy of USDA NRCS Wetland Science Institute. via Wikimedia Commons (Public domain).

Field Notes

[ growing · ecology · siting · care ]

American water plantain (Alisma subcordatum) is a perennial in the — family. Native range includes AR, KS, MO, OK. Hardy in zones 2b–11a. Mature size 6"–2'. Blooms Jun–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, american water plantain pairs naturally with: Broadleaf Arrowhead (Sagittaria latifolia), Lady Fern (Athyrium filix-femina), Wild Strawberry (Fragaria virginiana), Yarrow (Achillea millefolium).