| Collector | Balslev, H. |
| Number | 84743 |
| Collected with | Valencia, R. & Paz, G. |
| Country | Ecuador |
| Subpart | SUCUMBIOS |
| County | |
| Locality | Reserva Faunistica Cuyabeno. Río Cuyabeno from outlet of Laguna Grande and 5 km upstream. Tropical rain forest along mixed black- and white-water river. |
| Coordinates | 0° 1' N 76° 11' W |
| Minimum elevation (m) | 265 |
| Maximum elevation (m) | 265 |
| Start date | 1989/04/02 |
| End date | 1989/04/02 |
| Family | Poaceae |
| Identification | Hymenachne donacifolia (Raddi)Chase |
| Determined by | S. Laegaard, 1989 |
| Identification qualifier | |
| Field notes | Partly submerged along river margin, forming dense stands. |
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