| Special Geographical Unit: | Apalachicola National Estuarine Sanctuary |
| Verbatim Directions to Locality: | Apalachicola National Estuarine Sanctuary; beside East River Cutoff just above its juncture with St. Marks River. ca. 6 air mi N of town of Apalachicola. |
| Habitat: | in small openings in heavily-wooded floodplain created by hurricane tree-blow down beside East River Cutoff just above its juncture with St. Marks River. |
| Plant Morphology Observations: | large, many-stemmed clumps, culms to 8 dm tall. |
| Non digital information?: | N |