| Locality: | United States. Kentucky. Madison: Lower Silver Creek Reservoir (B Lake). 19.3 surface acres, created in 1939, elevation 980 feet, 1.9 mi W of US 421-25 and Ky 21 at Bighill and 0.7-1 mi S of Ky 21 on maintenance road, Berea College Forest, Knobs section, Western Mesophytic Forest |
| Habitat: | Western Mesophytic Forest. Emergent Marsh [Typha-Carex-Eleocharis]; frequent. Associates: Acorus calamus, Scirpus cyperinus, Saggitaria australis, Polygonum amphibium, Ludwigia alternifolia, Leersia oryzoides. |
| Collector: | Rudy A. Gelis, Doug A. Wireman R-20 |