| Currently Accepted Name: | Cyperus esculentus Species L. |
| Locality: | United States. Kentucky. Lewis: 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 Islands Quad. Elev. 500-510'. |
| Habitat: | Unconsolidated Shoreline; infrequent. Cultivated for the edible tubers in some countries of southern Europe. Associates: Amaranthus spinosus, Mollugo verticillata, Bidens frondosa, Artemisia annua, Panicum dichotomiflorum. |
| Collector: | Rudy A. Gelis, R. L. Thompson M1-1399 |