// SPECIES PROFILE · PERENNIAL · NATIVE

Whorled marshpennywort

Hydrocotyle verticillata var. verticillata

Whorled marshpennywort (Hydrocotyle verticillata var. verticillata) is a perennial in the — family. Native range includes AR, MO, OK. Hardy in zones 4a–13a. Mature size 6"–1'. Blooms Apr–Sep.

// QUICK FACTS

Family: —
Group: perennial
Native range: Native to 24 U.S. states, including AL, AR, AZ, CA, CT, DE…
USDA hardiness: Zones 4a–13a
Mature size: 6"–1'
Sun: —
Water: —
Bloom: Apr–Sep
Wildlife value: Pollinator and wildlife support
Ecological role: native species profile

Whorled marshpennywort (Hydrocotyle verticillata var. verticillata) — *Hydrocotyle verticillata var. verticillata* — Whorled marshpennywort. Photo via iNaturalist — no rights reserved, uploaded by 葉子.

Field Notes

[ growing · ecology · siting · care ]

Whorled marshpennywort (Hydrocotyle verticillata var. verticillata) is a perennial in the — family. Native range includes AR, MO, OK. Hardy in zones 4a–13a. Mature size 6"–1'. Blooms Apr–Sep.

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, whorled marshpennywort pairs naturally with: Common selfheal (Prunella vulgaris), Coon's tail (Ceratophyllum demersum), Leafy pondweed (Potamogeton foliosus), Leafy pondweed (Potamogeton foliosus ssp. foliosus).