tall thistle (Cirsium altissimum (L.) Hill)
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↑Range - Expand
| Legend | Color |
| Native | |
| Extirpated | |
| Native or Not Present | |
| Native or 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.
↑Links & External Resources
• Cirsium altissimum (Tall Thistle) | Illinois Wildflowers (About This Site)
• Cirsium altissimum (tall thistle) | USDA PLANTS Database (About This Site)
• Cirsium altissimum | Go Botany (About This Site)
• Tall Thistle | iNaturalist (About This Site)
• Cirsium altissimum | Biota of North America Project (BONAP) (About This Site)
• Cirsium altissimum | NatureServe Explorer (About This Site)
• Cirsium altissimum | Flora of North America (About This Site)
• Cirsium altissimum | Missouri Plants (About This Site)
• Tall Thistle | Maryland Biodiversity Project (About This Site)
• Cirsium altissimum (Tall Thistle) | Minnesota Wildflowers (About This Site)
