1 | Cirsium | altissimum | Tall Thistle | Aster Family | Asteraceae | Magnoliopsida |
2 | Cirsium | arvense | Canada Thistle | Aster Family | Asteraceae | Magnoliopsida |
3 | Cirsium | discolor | Field Thistle | Aster Family | Asteraceae | Magnoliopsida |
4 | Cirsium | horridulum var. horridulum | Yellow Thistle | Aster Family | Asteraceae | Magnoliopsida |
5 | Cirsium | muticum | Swamp Thistle | Aster Family | Asteraceae | Magnoliopsida |
6 | Cirsium | pumilum | Pasture Thistle | Aster Family | Asteraceae | Magnoliopsida |
7 | Cirsium | vulgare | Bull Thistle | Aster Family | Asteraceae | Magnoliopsida |