| Special Geographical Unit: | St. Marks National Wildlife Refuge |
| Verbatim Directions to Locality: | St. Marks National Wildlife Refuge. By road 1.7 mi N of Port Leon Rd (Rd 102) at refuge boundary, ca 3 mi W of Rte 59. |
| Latitude - degree with decimals: | 30.15667 |
| Latitude Direction Flag: | N |
| Longitude - degree with decimals: | 84.18933 |
| Longitude Direction Flag: | W |
| Habitat: | With R. petiolata in drying loamy sand bordering ditch. |
| Local Abundance Observations: | Frequent. |
