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// SPECIES PROFILE · PERENNIAL · NATIVE

Whorled marshpennywort

Hydrocotyle prolifera

Whorled marshpennywort (Hydrocotyle prolifera) is a perennial in the — family. Native range includes AR — verified against the Lady Bird Johnson Wildflower Center native distribution database. Hardy in zones 3a–11b. Blooms May–Aug.

// QUICK FACTS
Family
—
Group
perennial
Native range
Native to 19 U.S. states, including AL, AR, AZ, CA, DC, DE…
USDA hardiness
Zones 3a–11b
Mature size
—
Sun
—
Water
High · moisture-loving
Bloom
May–Aug
Wildlife value
Pollinator and wildlife support
Ecological role
native species profile
Whorled marshpennywort (Hydrocotyle prolifera)
Hydrocotyle prolifera — Whorled marshpennywort. Photo by Mason Brock (Masebrock) via Wikimedia Commons (Public domain).

Field Notes

[ growing · ecology · siting · care ]

Whorled marshpennywort (Hydrocotyle prolifera) is a perennial in the — family. Native range includes AR — verified against the Lady Bird Johnson Wildflower Center native distribution database. Hardy in zones 3a–11b. Blooms May–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, whorled marshpennywort pairs naturally with: Broadleaf Arrowhead (Sagittaria latifolia), Cardinal Flower (Lobelia cardinalis), Lady Fern (Athyrium filix-femina), Sneezeweed (Helenium autumnale).

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