| Eleocharis olivacea Torr. | B. D. Greene s.n. | United States of America. Massachusetts. Near Boston. | syntype | 51039 |  |
| Eleocharis olivacea Torr. | Collector unspecified s.n.
Aug 1822 | United States of America. New York. Babylon, Long Island. | syntype | 51041 |  |
| Eleocharis olivacea Torr. | Collector unspecified s.n.
1834 | United States of America. New Jersey. Toms River. | syntype | 51042 |  |
| Eleocharis olivacea Torr. | s.n.
Sep 1829 | United States of America. New Jersey. Quaker Bridge. | lectotype | 51043 |  |
| Eleocharis flavescens var. olivacea (Torr.) Gleason | | | | 02695132 |  |
| Eleocharis olivacea Torr. | | | | 2825303 |  |
| Eleocharis olivacea Torr. | | | | 2825314 |  |
| Eleocharis olivacea Torr. | | | | 2825334 |  |
| Eleocharis olivacea Torr. | | | | 2825335 |  |
| Eleocharis olivacea Torr. | | | | 2825336 |  |
| Eleocharis olivacea Torr. | | | | 2825337 |  |
| Eleocharis olivacea Torr. | | | | 2825338 |  |
| Eleocharis olivacea Torr. | | | | 2825339 |  |
| Eleocharis olivacea Torr. | | | | 2825340 |  |
| Eleocharis olivacea Torr. | | | | 2825341 |  |
| Eleocharis olivacea Torr. | | | | 2825343 |  |
| Eleocharis olivacea Torr. | | | | 2825344 |  |
| Eleocharis olivacea Torr. | | | | 2825345 |  |
| Eleocharis olivacea Torr. | | | | 2825346 |  |
| Eleocharis olivacea Torr. | S. T. Olney s.n.
s.d. | United States of America. Rhode Island. Providence Co. Providence. | | 2825352 |  |
| Eleocharis olivacea Torr. | | | | 2825355 |  |
| Eleocharis olivacea Torr. | | | | 2825356 |  |
| Eleocharis olivacea Torr. | | | | 2825357 |  |
| Eleocharis olivacea Torr. | | | | 2825358 |  |
| Eleocharis olivacea Torr. | | | | 2825359 |  |
| Eleocharis olivacea Torr. | | | | 2825360 |  |
| Eleocharis olivacea Torr. | | | | 2825363 |  |
| Eleocharis olivacea Torr. | | | | 2825364 |  |
| Eleocharis olivacea Torr. | | | | 2825365 |  |
| Eleocharis olivacea Torr. | | | | 2825367 |  |
| Eleocharis olivacea Torr. | | | | 2825368 |  |
| Eleocharis olivacea Torr. | | | | 2825369 |  |
| Eleocharis olivacea Torr. | | | | 2825372 |  |
| Eleocharis olivacea Torr. | | | | 2825376 |  |
| Eleocharis olivacea Torr. | | | | 2825378 |  |
| Eleocharis olivacea Torr. | | | | 2825384 |  |
| Eleocharis olivacea Torr. | | | | 2825385 |  |
| Eleocharis olivacea Torr. | | | | 2825386 |  |
| Eleocharis olivacea Torr. | | | | 2825388 |  |
| Eleocharis olivacea Torr. | | | | 2825389 |  |