| Collector | Madsen, J. E. |
| Number | 2299 |
| Collected with | B. Sambou, D. Dione, A. Goudiaby & S. Traoré |
| Country | Senegal |
| Subpart | TAMBACOUNDA |
| County | |
| Locality | Parc National du Niokolo Koba. Simenti - Dar Salam, km 3. Waterhole. |
| Coordinates | 13° 3' N 13° 17' W |
| Minimum elevation (m) | 40 |
| Maximum elevation (m) | 40 |
| Start date | 1993/10/03 |
| End date | 1993/10/03 |
| Family | Pontederiaceae |
| Identification | Heteranthera callifolia Reich. ex Kunth |
| Determined by | J. E. Madsen (DAKAR), 1995 |
| Identification qualifier | |
| Field notes | Aquatic. Flowers blue. |
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