| Collector | Terneus, E. |
| Number | 4 |
| Collected with | B. Ollgaard, B. Stahl |
| Country | Ecuador |
| Subpart | Morona Santiago |
| County | |
| Locality | Paramo de Culelxillas, laguna de Mailas, a 10 km. de la poblacion de Gualaceo. |
| Coordinates | |
| Minimum elevation (m) | 3200 |
| Maximum elevation (m) | 3200 |
| Start date | 1997/03/20 |
| End date | 1997/03/20 |
| Family | Isoetaceae |
| Identification | Isoetes karstenii A.Braun |
| Determined by | J.B.S. Pereira |
| Identification qualifier | |
| Field notes | Hojas color verde oscuro, teretes y muy coriaceas. Creciendo a 60 cm. de profundidad, a 5m. desde la orilla. |
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