| oswaldia assimilis | | Canada: Ontario, Wellington County, Guelph, Biodiversity Institute of Ontario | | 1053102825 |
| oswaldia assimilis | | Canada: Ontario, Guelph, St. Ignatius of Loyola Catholic ES, EQP-CLL-575 | | 1051099335 |
| oswaldia assimilis | | canada: ontario, point pelee national park, woodland trail | | 1389469207 |
| oswaldia assimilis | | canada: ontario, cambridge, rare charitable research reserve, site 4 - blair flats, unburned prairie | | 1321375945 |
| oswaldia assimilis | | canada: ontario, cambridge, rare charitable research reserve, site 4 - blair flats, unburned prairie | | 1318749499 |
| oswaldia assimilis | | canada: ontario, cambridge, rare charitable research reserve, site 3 - grassy wetland | | 1318748331 |