// SPECIES PROFILE · ANNUAL · NATIVE

Grassleaf mudplantain

Heteranthera dubia

Grassleaf mudplantain (Heteranthera dubia) is a annual in the — family. Native range includes AR, KS, MO, OK. Hardy in zones 2a–11b. Mature size 6"–1'. Blooms Apr–Nov.

// QUICK FACTS

Family: —
Group: annual
Native range: Native to 45 U.S. states, including AL, AR, AZ, CA, CO, CT…
USDA hardiness: Zones 2a–11b
Mature size: 6"–1'
Sun: —
Water: —
Bloom: Apr–Nov
Wildlife value: Pollinator and wildlife support
Ecological role: native species profile

Grassleaf mudplantain (Heteranthera dubia) — *Heteranthera dubia* — Grassleaf mudplantain. Photo by Fritzflohrreynolds via Wikimedia Commons (CC BY-SA 3.0).

Field Notes

[ growing · ecology · siting · care ]

Grassleaf mudplantain (Heteranthera dubia) is a annual in the — family. Native range includes AR, KS, MO, OK. Hardy in zones 2a–11b. Mature size 6"–1'. Blooms Apr–Nov.

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, grassleaf mudplantain pairs naturally with: Common Sunflower (Helianthus annuus), Swamp verbena (Verbena hastata), Slim amaranth (Amaranthus hybridus), Annual ragweed (Ambrosia artemisiifolia var. artemisiifolia).