Quercus

Tennessee › Asteraceae

Jerusalem Artichoke

Helianthus tuberosus
—
Not scored
Tennessee · provisional Quercus Score

Native/exotic classification is missing or conflicting in the available sources.

Tennessee scoring method and limits

Native status: sources disagree. Tennessee yard-fit calculations are not available yet.

Also available: North Carolina assessment. Both assessments use the same scoring rules with the evidence shown for each state.

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 status: sources disagree
Source conservation rankSNR
Recorded in Tennessee65 counties in the atlas snapshot

Growing conditions

Full to part sun, medium to moderately dry moisture level, best in fertile sandy loam, very strongly acid to moderately alkaline pH. 6-10 feet height, bright yellow flowers, blooms late summer to fall. Generously re-seeds itself and also sprouts from small tuber pieces accidentally left in the ground.

Native Region: Statewide UT Smart Yards source

Native-status evidence

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

Native Region: Statewide Source

Combined-source assessment

Native status: sources disagree

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: Statewide

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

TN–KY Plant Atlas: introduced (TN–KY).

Sources

Machine-readable: plant evidence.

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