| Locality: | United States. Kentucky. Jackson: Owsley Fork Reservoir, 151 surface acres created in 1974, elevation 820 feet, 2.0 mi E of Bighill from the jct of US 25-421 and 0.1-1.3 mi SSE on Owsley Fork Road, Berea College Forest, Knobs Section. Western Mesophytic Forest. |
| Habitat: | Western Mesophytic Forest. Seasonally Dewatered Flats [Typha-Polygonum-Scirpus]; rare. Associates: Leersia oryzoides, Rotala ramosior, Diodia virginiana, Eleocharis ovata, Ludwigia alternifolia, Xanthium strumarium. |
| Collector: | Chris A. Fleming, Ralph L. Thompson R-890 |