| Collector | Terneus, E. |
| Number | 233 |
| Collected with | C. González |
| Country | Ecuador |
| Subpart | IMBABURA |
| County | |
| Locality | Laguna de Yahuarcocha, a 3 Km de la ciudad de Ibarra |
| Coordinates | 0° 22' 94'' N 78° 6' 96'' W |
| Minimum elevation (m) | 2200 |
| Maximum elevation (m) | 2200 |
| Start date | 1998/10/11 |
| End date | 1998/10/11 |
| Family | Haloragidaceae |
| Identification | Myriophyllum aquaticum Vercd. |
| Determined by | |
| Identification qualifier | |
| Field notes | Macrófita enraizada flotante, creciendo en aguas lénticas y poco profundas, detrás de la vegetación emergente, junto a Eichhornia crassipes. |