| Name | Isoetes foveolata var. plenospora A. A. Eaton |
| Authorship | A. A. Eaton |
| Rank | Variety |
| Placed in | Isoetes foveolata A. A. Eaton |
| Citation | 1903 Rhodora 5(59): 280 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Isoetes foveolata var. plenospora A. A. Eaton |
| Identification made in | [no date] (1), 2018 (1) |