| Determined as: | Potamogetonaceae Potamogeton perfoliatus L. |
| Collected by: | Jäger, E., 29.07.1986 |
| Determined by: | Jäger, E., 29.07.1986 |
| Herbarium: | HAL Acc. No.: 130552 |
| Country: | Mongolia |
| Province: | Arkhangay |
| District: | Ögiynuur |
| Locality: | Brücke beim Ögij-nuur |
| Coordinates: | geogr. Coord. 102° 40' (lon) 47° 50' (lat) |
| Altitude: | 1450 ± 50 m |
| Habitat: | Tümpel am Fluß |