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// SPECIES PROFILE · ANNUAL · NATIVE

Threestamen waterwort

Elatine triandra

Threestamen waterwort (Elatine triandra) is a annual in the — family. Native range includes MO — verified against the Lady Bird Johnson Wildflower Center native distribution database. Hardy in zones 3a–7b.

// QUICK FACTS
Family
—
Group
annual
Native range
Native to MA, ME, MO, NY
USDA hardiness
Zones 3a–7b
Mature size
—
Sun
—
Water
—
Bloom
—
Wildlife value
Pollinator and wildlife support
Ecological role
native species profile
Threestamen waterwort (Elatine triandra)
Elatine triandra — Threestamen waterwort. Photo by Loasa via Wikimedia Commons (Public domain).

Field Notes

[ growing · ecology · siting · care ]

Threestamen waterwort (Elatine triandra) is a annual in the — family. Native range includes MO — verified against the Lady Bird Johnson Wildflower Center native distribution database. Hardy in zones 3a–7b.

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, threestamen waterwort pairs naturally with: Black-Eyed Susan (Rudbeckia hirta), Common Sunflower (Helianthus annuus), Scarlet paintbrush (Castilleja coccinea), Louisiana devil's-claw (Proboscidea louisianica).

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