| Collector | Haynes, R.R. |
| Number | 8650 |
| Collected with | |
| Country | Nicaragua |
| Subpart | Esteli |
| County | |
| Locality | Small farm pond ca. 6.8 km N of Río La Serena along the road from Estelí to Ocotal |
| Coordinates | |
| Minimum elevation (m) | 0 |
| Maximum elevation (m) | 0 |
| Start date | 1982/07/16 |
| End date | 1982/07/16 |
| Family | Najadaceae |
| Identification | Najas guadalupensis var. guadalupensis |
| Determined by | |
| Identification qualifier | |
| Field notes | Abundant in water ca. 1/2 m deep along entire margin of pond |
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