| Collector | Ollgaard, B. |
| Number | 34831 |
| Collected with | Asanza, E. & Brandbyge, J. & Roth, S. & Sperling, C. |
| Country | Ecuador |
| Subpart | PASTAZA |
| County | |
| Locality | Río Bobonaza. River banks and rain forest on elevated ground between oil exploration camp Chichirota and Destacamento Cabo Pozo. |
| Coordinates | 2° 25' S 76° 39' W |
| Minimum elevation (m) | 300 |
| Maximum elevation (m) | 300 |
| Start date | 1980/07/20 |
| End date | 1980/07/20 |
| Family | Acanthaceae |
| Identification | Hygrophila costata Nees & T.Nees |
| Determined by | |
| Identification qualifier | |
| Field notes | On sandy riverbank behind grass zone 0.5-0.7 m. Flowers white. |
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