| Determined as: | Potamogetonaceae Potamogeton gramineus L. |
| Collected by: | Knapp, H.-D., 03.07.1978, Coll.No. 430/78 |
| Determined by: | Knapp, H.-D. |
| Flowering status: | flowering |
| Herbarium: | HAL Acc. No.: 49791 |
| Country: | Mongolia |
| Province: | Arkhangay |
| District: | Chuluut |
| Locality: | Tal des Chulutyn-Gol ca. 40 km N Chulut |
| Coordinates: | geogr. Coord. 100.355 (lon) 47.854 (lat) |
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| Prec: | 20 km |
| Habitat: | flaches Altwasser in Talaue |