| hydrocotyle americana | | Canada: Ontario, Norfolk County, Norfolk Twp., Carr Tract and Nursery Tract (St. Williams Forest), North Walsingham/South Walsingham Townline Road | | 1316023182 |
| hydrocotyle americana | | Canada: Ontario, rare Charitable Research Reserve, Blair Flats Wetland | | 930159726 |
| hydrocotyle americana | | Canada: Ontario, rare Charitable Research Reserve, Blair Flats Wetland | | 929982149 |
| hydrocotyle americana | | canada: ontario, norfolk county, norfolk twp., carr tract and nursery tract (st. williams forest), north walsingham/south walsingham townline road | | 1328822234 |