| Collector | Ollgaard, B. |
| Number | 2142 |
| Collected with | B. B. Klitgaard, N. Aguirre, P. Lozano & B. Merino |
| Country | Ecuador |
| Subpart | LOJA |
| County | |
| Locality | Tambo Negro, road Sozoranga-Macará, 6.6 km from Sabiango. Dry deciduous forest. |
| Coordinates | 4° 24' S 79° 51' W |
| Minimum elevation (m) | 500 |
| Maximum elevation (m) | 600 |
| Start date | 1996/11/24 |
| End date | 1996/11/24 |
| Family | Hydrocharitaceae |
| Identification | Limnobium laevigatum (H. & B. ex Willd.) Heine |
| Determined by | |
| Identification qualifier | |
| Field notes | Free-floating in stagnant river. Leaf underside with thick spongy tissue. Flowers transparently whitish. |
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