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// SPECIES PROFILE · PERENNIAL · NATIVE

Whorl-leaf watermilfoil

Myriophyllum verticillatum

Whorl-leaf watermilfoil (Myriophyllum verticillatum) is a perennial in the — family. Native range includes AR — verified against the Lady Bird Johnson Wildflower Center native distribution database. Hardy in zones 1a–11b. Mature size 4'–10'. Blooms Jul–Oct.

// QUICK FACTS
Family
—
Group
perennial
Native range
Native to 35 U.S. states, including AK, AR, CA, CO, CT, FL…
USDA hardiness
Zones 1a–11b
Mature size
4'–10'
Sun
—
Water
—
Bloom
Jul–Oct
Wildlife value
Pollinator and wildlife support
Ecological role
native species profile
Whorl-leaf watermilfoil (Myriophyllum verticillatum)
Myriophyllum verticillatum — Whorl-leaf watermilfoil. Photo by Kristian Peters -- Fabelfroh 15:25, 23 October 2006 (UTC) via Wikimedia Commons (CC BY-SA 3.0).

Field Notes

[ growing · ecology · siting · care ]

Whorl-leaf watermilfoil (Myriophyllum verticillatum) is a perennial in the — family. Native range includes AR — verified against the Lady Bird Johnson Wildflower Center native distribution database. Hardy in zones 1a–11b. Mature size 4'–10'. Blooms Jul–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, whorl-leaf watermilfoil pairs naturally with: Lady Fern (Athyrium filix-femina), Wild Strawberry (Fragaria virginiana), Yarrow (Achillea millefolium), Common selfheal (Prunella vulgaris).

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