| Collector | Holm-Nielsen, L. B. |
| Number | 7226 |
| Collected with | Jeppesen, S. & Lojtnant, B. & Ollgaard, B. |
| Country | Ecuador |
| Subpart | GUAYAS |
| County | |
| Locality | Hacienda Piedad, 3 km N of Balzar along Río Daule. Swampy areas with gallery vegetation. |
| Coordinates | 1° 20' S 79° 54' W |
| Minimum elevation (m) | 25 |
| Maximum elevation (m) | 25 |
| Start date | 1973/06/17 |
| End date | 1973/06/17 |
| Family | Ceratophyllaceae |
| Identification | Ceratophyllum muricatum Cham. |
| Determined by | |
| Identification qualifier | |
| Field notes | Leaves reddish tinged. |
This record