Quercus

Tennessee › Lythraceae

Northern Winged Loose Strife

Lythrum alatum
Also known as

Winged Loosestrife

54
Strong
Tennessee · provisional Quercus Score

Calculated with the same rules as North Carolina, using Tennessee host-range and conservation-rank inputs. Native-status evidence is shown separately.

Tennessee scoring method and limits

Insect resources, birds and habitat

Caterpillars11 recorded species on the genus
Host genera of native Lepidoptera recorded in Tennessee; host association and range overlap, not confirmed local feeding.
Bees25 recorded species on the genus
Southeastern North America
Specialist bees0 recorded species on the genus
Eastern North America
Birds1 recorded species on the genus
North America
StructureForb/herb, Subshrub

Baseline 59; additional insect credit +0. Rarity adjustment -5 using the NC rule (unranked: −5; final score floor: 5). Missing records do not establish zero ecological use.

Native to Tennessee (state-specific source). Tennessee yard-fit calculations are not available yet.

Recorded in your county?

Choose a county to check the available records.

County occurrence is not proof of native range or yard suitability. A missing record does not establish absence.

Tennessee statusNative to Tennessee (state-specific source)
Source conservation rankSNR
Recorded in Tennessee14 counties in the atlas snapshot

Growing conditions

Full sun, wet to moderately wet moisture level, tolerant of a wide range of soils including heavy clay. 3-4 ft. height, blooms summer to fall, purple flowers, spreads by rhizomes.

Native Region: Lightly statewide, primarily in the Interior Low Plateau region UT Smart Yards source

Native-status evidence

Combined TN–KY atlas flag: Y. A regional flag alone does not settle Tennessee native status.

Native Region: Lightly statewide, primarily in the Interior Low Plateau region Source

Combined-source assessment

Native to Tennessee (state-specific source)

A TN-specific UT native-guide page or an exact entry in the Tennessee rare-plant list supports a direct source claim. Otherwise, TN occurrence plus an atlas native flag and exact-name native evidence from NC flora or USDA L48 supports a provisional state inference. No one regional claim or occurrence alone establishes TN nativity; NC and L48 claims retain their actual scopes.

UT Tennessee Smart Yards native-plant guide: native (TN). Native Region: Lightly statewide, primarily in the Interior Low Plateau region

NC vascular flora: native (NC).

USDA PLANTS: native (L48). CAN:N L48:N

TN–KY Plant Atlas: native (TN–KY).

Sources

Machine-readable: plant evidence.

Quercus Score v0.6.4 · built 2026-09-26 · Tennessee beta · sources and limitations on every page