| Special Geographical Unit: | St. Marks [National] Wildlife Refuge |
| Verbatim Directions to Locality: | St. Marks [National] Wildlife Refuge. |
| Habitat: | in live oak hammock. |
| Local Abundance Observations: | frequent. |
| Identifier's Name: | R.K. Godfrey |
| Text Identification Date: | 21 June 1972 |
| Formal Identification Date: | 1972-06-21 |
| Lowest Rank Identified: | Species |
| Identification History: | Rhynchospora megalocarpa Gray. |
| Determinavit: | det. |
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| Identifier's Name: | Shirley Mah Kooyman |
| Text Identification Date: | 1980 |
| Lowest Rank Identified: | Species |
| Identification History: | ![Rhynchospora megalocarpa Gray.] |
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| Identifier's Name: | R. Kral |
| Text Identification Date: | [19]90 |
| Lowest Rank Identified: | Species |
| Identification Literature: | Ann. Lyc. New York III: 368. 1836. |
| Identification History: | Rhynchospora megalocarpa Gray. |
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