| Special Geographical Unit: | St. Marks National Wildlife Refuge (Panacea Unit) |
| Verbatim Directions to Locality: | At E end of Rd 341, E of Otter Creek bridge. |
| Latitude - degree with decimals: | 30.05461 |
| Latitude Direction Flag: | N |
| Longitude - degree with decimals: | 84.41832 |
| Longitude Direction Flag: | W |
| Habitat: | In moist sand and in shallow waters of small pond. |
| Plant Morphology Observations: | Rhizomatous, bristles 2X achene length. |
| Local Abundance Observations: | Frequent. |
| Non digital information?: | N |