| Determined as: | Asteraceae Sonchus brachyotus DC. |
| Revised by: | Kilian, Norbert, 12.2010 |
| Record formerly determined as: | Sonchus arvensis ssp. uliginosus |
| Collected by: | Schnittler, M., 10.08.2003, Coll.No. 20301 |
| Determined by: | Schnittler, M., 2003 |
| Flowering status: | flowering |
| Herbarium: | GFW |
| Country: | Mongolia |
| Province: | Khovd |
| District: | Dörgön |
| Geogr. Region: | Great Lake Basin |
| Next important location: | 5.5 km WSW Seer, between lakes Khar-Us-Nuur and Dalay-Nuur |
| Locality: | Seer, sandy, fixed alluvial soils around the Khara-Us river |
| Prec: | 500 m |
| Altitude: | 1159 ± 10 m |
| Habitat: | short-grassy, somewhat salt-influenced, intensively grazed meadows |