| Special Geographical Unit: | St. Marks Nat'l. Wildlife Refuge |
| Verbatim Directions to Locality: | St. Marks Nat'l. Wildlife Refuge; beside Aucilla Tram Raod, 0.3 mi E of Pinhook River bridge. |
| Latitude - degree with decimals: | 30.13002 |
| Latitude Direction Flag: | N |
| Longitude - degree with decimals: | 84.01399 |
| Longitude Direction Flag: | W |
| Habitat: | in drying loamy sand (in worst spring drought in 120 yrs). |
| Plant Morphology Observations: | spikelets mostly 5.5-7 mm long; achenes stipitate. |
| Local Abundance Observations: | frequent. |