| Locality: | United States. Kentucky. Garrard: Camp Nelson Quarry. 117 mi of KY 1845 from junction with U. S. 27 and 1.0 mi WNW of Lambert Methodist Church. |
| Habitat: | An Ordovician limestone quarry abandoned in 1991. Seasonal ponded area; frequent. Associates: Cyperus strigosus, C. squarrosa, C. flavescens, C. squarrosus, Eleocharis ovata, Lindernia dubia, Ammania coccinea, Rotala ramesoir, Leucospora multifida, Veronica anagallis-aquatica. |