| Currently Accepted Name: | Cyperus esculentus Species L. |
| Locality: | United States. Kentucky. Lewis: Lewis County: Manchester Island No.1, 27-acres, Ohio River, Mile 396, 1.3 mi E of Trinity Sta. and 0.2 mi W of Irwin, KY 8, or 1.7 mi E of Manchester, Ohio, Ohio Manchester Island Quad. Elev. 500-510'. |
| Habitat: | Unconsolidated Shoreline [Platanus-Betula-Salix]; occasional. Associates: C. odoratus, c. strigosus, Panicum capillare, P. dichotomiflorum, Digitaria sanguinalis, Paspalum fluitans. |
| Collector: | Rudy A. Gelis, R. L. Thompson M1-949 |