Bull Thistle (Cirsium vulgare (Savi) Ten.)
Also known as common thistle, spear thistle; also classified as Carduus vulgaris Savi.
↑Summary
A biennial native to Europe and invasive in most of North America.
↑Range - Expand
| Legend | Color |
| Introduced | |
| Introduced or Not Present |
This tentative map is based on our own research. It may have limited data on Canada and/or Mexico, and there is some subjectivity in our assignment of plants as introduced vs. expanded. Read more in this blog post.
↑Similar Plants
↑Links & External Resources
• Bull Thistle | Fire Effects Information System (FEIS) (About This Site)
• Cirsium vulgare (Bull Thistle) | Illinois Wildflowers (About This Site)
• Cirsium vulgare (bull thistle) | USDA PLANTS Database (About This Site)
• Cirsium vulgare | Go Botany (About This Site)
• Cirsium vulgare (spear thistle) | CABI Invasive Species Compendium (About This Site)
• Cirsium vulgare | Biota of North America Project (BONAP) (About This Site)
• Cirsium vulgare | NatureServe Explorer (About This Site)
• Cirsium vulgare | Flora of North America (About This Site)
• Cirsium vulgare | Missouri Plants (About This Site)
• Bull Thistle | Maryland Biodiversity Project (About This Site)
• Cirsium vulgare (Savi) Ten. | Plants of the World Online (POWO) (About This Site)
• Cirsium vulgare (Bull Thistle) | Minnesota Wildflowers (About This Site)
↑Photo gallery
