Locality: | United States. Kentucky. Garrard: Camp Nelson Quarry, 1.7 mi off KY 1845 from junction of US 27 and 1.0 mi WNW of Lambert Methodist Church, 12.2 mi. N of Lancaster. |
Habitat: | An Ordovician limestone quarry, abandoned in 1991. Wetland shallow floor seeps and ponded habitat. Native annual, occasional. Associate: Cyperus flavescens. |