| Determined as: | Potamogetonaceae Potamogeton perfoliatus L. |
| Collected by: | Hilbig, W.; Schamsran, Z., 18.06.1974, Coll.No. 121/74 |
| Confirmed by: | Uhlig, J., Jul 75 |
| Flowering status: | vegetative |
| Comments for presentation : | Uhlig: der "densifolius-Form" angenähert. Weitere Bemerkungen vgl. bei Nr. 41648 |
| Herbarium: | HAL Acc. No.: 41650 |
| Country: | Mongolia |
| Province: | Khovd |
| District: | Bulgan |
| Locality: | Westliche Mongolei. Bulgan Gol, Altwasser an den Chaaz-Bergen Richtung Jarantai |
| Coordinates: | geogr. Coord. 91.167 (lon) 46.105 (lat) |
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| Prec: | 10 km |
| Habitat: | Altwasser |