| Collector | Asanza, E. |
| Number | 41209 |
| Collected with | Barfod, A. |
| Country | Ecuador |
| Subpart | NAPO |
| County | |
| Locality | Cuyabeno Nature Reserve, Río Cuyabeno and Laguna Cañangueno. Collections made from canoe going upstream to the lake, varzéa and igapó forest. |
| Coordinates | 0° 2' S 76° 10' W |
| Minimum elevation (m) | 240 |
| Maximum elevation (m) | 240 |
| Start date | 1982/11/12 |
| End date | 1982/11/12 |
| Family | Cyperaceae |
| Identification | Eleocharis plicarhachis (Griseb.)Svenson |
| Determined by | Camelbeke, K. (GENT), 1993. |
| Identification qualifier | |
| Field notes | One of the plants making up floating islands. Anthers white. |