| Collector | Bâ, A. T. |
| Number | 1255 |
| Collected with | J. E. Madsen, B. Sambou, A. Goudiaby, S. Traoré & A. Sanokho |
| Country | Senegal |
| Subpart | TAMBACOUNDA |
| County | |
| Locality | Parc National du Niokolo Koba. Rd. Dalaba - Oubadji, km 5. Small lake. |
| Coordinates | 12° 45' N 13° 14' W |
| Minimum elevation (m) | 100 |
| Maximum elevation (m) | 100 |
| Start date | 1993/01/22 |
| End date | 1993/01/22 |
| Family | Hydrocharitaceae |
| Identification | Ottelia ulvifolia (Planchon) Walpers |
| Determined by | J. E. Madsen (DAKAR), 1995 |
| Identification qualifier | |
| Field notes | Aquatic, emerging. Flowers yellow. |