yellow thistle (Cirsium horridulum Michx.)
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↑Range - Expand
| Legend | Color |
| Native | |
| Native or Not Present | |
| Native or Expanded | |
| Expanded 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 horridulum (yellow thistle) | USDA PLANTS Database (About This Site)
• Cirsium horridulum | Go Botany (About This Site)
• Bristle Thistle | iNaturalist (About This Site)
• Cirsium horridulum | Biota of North America Project (BONAP) (About This Site)
• Cirsium horridulum | NatureServe Explorer (About This Site)
• Cirsium horridulum | Flora of North America (About This Site)
• Yellow Thistle | Maryland Biodiversity Project (About This Site)
• Cirsium horridulum Michx. var. horridulum (Yellow Thistle, Common Yellow Thistle) | Digital Atlas of the Virginia Flora (About This Site)
