| Locality: | United States. Kentucky. Jackson: S-Tree Rd. (F.S. 20)- or Gravel Lick Rd.- 3.6 mi. S of Jct. US 421 and 1.6 mi. N Jct. F.S. 299; Daniel Boone National Forest. |
| Habitat: | Pine-oak woods- moist- sandy roadside bank- 1400' elev. Associates: Festuca elatior- Melilotus alba- Daucus carota- Polygonatum biflorum- Zizia aptera- Potentilla simplex- Acer rubrum- Cornus florida- Quercus prinus- Pinus virginiana- Smilax rotundifolia |
| Collector: | Ralph L. Thompson 94-179
with John Richard Abbott |