| Plant Name | Greater Knapweed | |
| Collection Number | G-OV-2013-0112 | |
| Scientific Name | Centaurea Scabiosa | |
| Family | Aster | |
| Start of Blooming Season | June | |
| End of Blooming Season | August | |
| Discovery Location | Shorthills Provincial Park, Pelham, Niagara Region, Ontario, Canada | |
| Image Description | July 24, 2014 -- The sample image shows the unique shape of the greater knapweed flower. | |
| Author | CherryAnn Villa | |
