Quercus

Tennessee › Poaceae

Savanna Panicgrass

Phanopyrum gymnocarpon
Also known as

Savannah Panic Grass

Listed in Tennessee’s rare-plant reference. Use nursery-propagated plants; conservation status is separate from this ecological score.

44
Good
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

Caterpillars23 recorded species on the genus
Host genera of native Lepidoptera recorded in Tennessee; host association and range overlap, not confirmed local feeding.
Bees0 recorded species on the genus
Southeastern North America
Specialist bees0 recorded species on the genus
Eastern North America
Birds35 recorded species on the genus
North America
StructureGraminoid

Baseline 49; 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.

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 to Tennessee (state-specific source)
Source conservation rankSNR
Recorded in Tennessee1 counties in the atlas snapshot

Growing conditions

No reviewed growing-condition notes are attached yet.

Native-status evidence

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

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.

Tennessee Natural Heritage rare-plant list (2025): native (TN). Phanopyrum gymnocarpon savannah panic grass SWAMPS S S2S3 G5 Phegopteris connectilis Northern Beechfern MOUNTAIN BOGS AND ROCKY SEEPS SPORULATION: JUN-AUG BR E S1 G5 Phemeranthus calcaricus Limestone Fame-flower GLADES FL: JUN-SEPT, FR: SEPT-OCT CB, RV S S3 G3 Phemeranthus mengesii Menge's Fame-flower DRY ROCK LEDGES FL: JUN-SEPT, FR: JUN-SEPT RV, CU T S2 G3 Phemeranthus teretifolius Round

NC vascular flora: native (NC).

USDA PLANTS: native (L48). 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