| carduus acanthoides | | canada: ontario, kingston, hartington, frontenac co. | | 1331395681 |
| carduus acanthoides | | canada: ontario, simcoe co | | 1331394283 |
| carduus acanthoides | | Canada: Ontario, Kingston, Hartington, Frontenac Co. | | 1316027168 |
| carduus acanthoides | | Canada: Ontario, Simcoe co | | 1316023636 |