| Currently Accepted Name: | Najas guadalupensis Species (Spreng.) Magnus |
| 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 |
| Habitat: | Western Mesophytic Forest. Vegetated Open Water [Potamegeton-Najas]; frequent. Associates: Potamogeton pusillus, P. nodosus. |
| Collector: | Chris A. Fleming, Ralph L. Thompson, Andy E. Shupe R-1139 |