| Family | Polygonaceae |
| Genus | Rumex |
| Species | obtusifolius |
| Author | L. |
| Collector | Meadhdh Costigan |
| Number | CST2 |
| Date | 26/04/2010 |
| Location | Disturbed area in full sun, not far for the Ethnobotany garden |
| Coordinates | N 51.29693304 E 1.053532183 |
| Common name/s | Broad leaf dock |