| Collector | Balslev, H. |
| Number | 10585 |
| Collected with | Madsen, E. |
| Country | Ecuador |
| Subpart | NAPO |
| County | |
| Locality | Puerto Francisco de Orellana (Coca). Approx. 40 km SE of the town, (Auca oil field). Roadside vegetation in tropical rain forest. |
| Coordinates | 0° 40' S 76° 52' W |
| Minimum elevation (m) | 300 |
| Maximum elevation (m) | 300 |
| Start date | 1976/11/04 |
| End date | 1976/11/04 |
| Family | Thelypteridaceae |
| Identification | Thelypteris opulenta (Kaulf.)Fosberg |
| Determined by | |
| Identification qualifier | |
| Field notes | In scrubby vegetation. Rhizome creeping. |
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