Contains 7 accepted taxa overall.
Characteristics
Classification
Citation
CIRSIUM Miller, Gard. Dict. Abr., ed. 4. 1754.
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TYPE: Cirsium heterophyllum (Linnaeus) Hill (Carduus heterophyllus Linnaeus) Lectotypified by Britton & A. Brown, Ill. Fl. N. U.S., ed. 2. 3: 548. 1913.
Species
| Scientific Name | Common Name | Status | Photos |
|---|---|---|---|
| Cirsium altissimum | TALL THISTLE | Native | |
| Cirsium horridulum | PURPLE THISTLE; HORRID THISTLE | Native FAC (NWPL) | |
| Cirsium lecontei | LECONTE'S THISTLE | Native FACW (NWPL) FACW (DEP) | |
| Cirsium muticum | SWAMP THISTLE | Native OBL (NWPL) OBL (DEP) | |
| Cirsium nuttallii | NUTTALL'S THISTLE | Native FAC (NWPL) T (WAP) FACW (DEP) | |
| Cirsium virginianum | VIRGINIA THISTLE | Native OBL (NWPL) | |
| Cirsium vulgare | BULL THISTLE | Not Native FACU (NWPL) |
[Family identification key]
No identification key is available for this family.