| Locality: | United States. Kentucky. Madison: Cowbell FRS, No.2 Reservoir, 7.4 surface acres, a floodwater retarding structure built in 1986, elevation 860 feet, 1.0 mi W of US 421-25 and Ky 21 at Bighill, 0.3-0.6 mi S on maintenance road, Berea College Forest, Knobs Section |
| Habitat: | Western Mesophytic forest. Emergent Marsh [Typha-Scirpus-Leersia]; infrequent. Associates: Eleocharis quadrangulata, Juncus acuminatus, Carex ssp., Panicum rigidulum. |
| Collector: | Ralph L. Thompson, Rudy A. Gelis R-346 |