| Collector | Ollgaard, B. |
| Number | 34100B |
| Collected with | Brandbyge, J. & Roth, S. & Sperling, C. |
| Country | Ecuador |
| Subpart | NAPO |
| County | |
| Locality | Laguna San Marcos, slopes at S and SW end of the lake with elfin forest, dominated by Escallonia. |
| Coordinates | 0° 7' N 77° 58' W |
| Minimum elevation (m) | 3400 |
| Maximum elevation (m) | 3500 |
| Start date | 1980/07/08 |
| End date | 1980/07/08 |
| Family | Cyperaceae |
| Identification | Rhynchospora macrochaeta Steud. |
| Determined by | |
| Identification qualifier | |
| Field notes | On road bank, up to 2 m high, tufted. |
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