Locality: | United States. Kentucky. Clark: Abandoned limestone quarry- 0.9 mi. W of Jct. KY 1924 on KY 418 (Old Athens-Boonesboro Rd.)- adjacent to Kentucky River. |
Habitat: | Dry- thin limestone soil of ruderal areas of Juniperus-Acer-Robinia-Platanus woodland. Associates: Daucus carota- Oenothera biennis- Euphorbia maculata- Melilotus alba. |
Collector: | Ralph L. Thompson 93-412 with Andy E. Shupe |