| Verbatim Directions to Locality: | just N of Hwy 98 and W of Rte 363 (Woodville Hwy), ca. 2 air mi NNW of St. Marks. |
| Habitat: | in drying mud (no standing water) under shaded canopy in gum swamp that was flooded three weeks ago (see #15507). |
| Plant Morphology Observations: | Several culms totally staminate; others with both sexes as in 15592. |
| Local Abundance Observations: | common. |
| Non digital information?: | N |