| Collector | Ollgaard, B. |
| Number | 34050 |
| Collected with | Brandbyge, J. & Roth, S. & Sperling, C. |
| Country | Ecuador |
| Subpart | NAPO |
| County | |
| Locality | Laguna San Marcos, NE of Volcán Cayambe. Extensive flat plain S of the lake, predominantly marshy. |
| Coordinates | 0° 7' N 77° 58' W |
| Minimum elevation (m) | 3370 |
| Maximum elevation (m) | 3370 |
| Start date | 1980/07/08 |
| End date | 1980/07/08 |
| Family | Poaceae |
| Identification | Agrostis tolucensis Kunth |
| Determined by | S. Laegaard |
| Identification qualifier | |
| Field notes | Tufted, marshy ground. |