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// SPECIES PROFILE · PERENNIAL · NATIVE

Twining snoutbean

Rhynchosia tomentosa

Twining snoutbean (Rhynchosia tomentosa) is a perennial in the — family. Native range includes AR — verified against the Lady Bird Johnson Wildflower Center native distribution database. Hardy in zones 5a–11b. Mature size 1"–30". Blooms Mar–Aug.

// QUICK FACTS
Family
—
Group
perennial
Native range
Native to 15 U.S. states, including AL, AR, DC, DE, FL, GA…
USDA hardiness
Zones 5a–11b
Mature size
1"–30"
Sun
—
Water
—
Bloom
Mar–Aug
Wildlife value
Pollinator and wildlife support
Ecological role
native species profile
Twining snoutbean (Rhynchosia tomentosa)
Rhynchosia tomentosa — Twining snoutbean. Photo by Mason Brock (Masebrock) via Wikimedia Commons (Public domain).

Field Notes

[ growing · ecology · siting · care ]

Twining snoutbean (Rhynchosia tomentosa) is a perennial in the — family. Native range includes AR — verified against the Lady Bird Johnson Wildflower Center native distribution database. Hardy in zones 5a–11b. Mature size 1"–30". Blooms Mar–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, twining snoutbean pairs naturally with: Broadleaf Arrowhead (Sagittaria latifolia), Blue-Eyed Grass (Sisyrinchium angustifolium), Butterfly Milkweed (Asclepias tuberosa), Cardinal Flower (Lobelia cardinalis).

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