Bull Thistle (Cirsium vulgare (Savi) Ten.)

Also known as common thistle, spear thistle; also classified as Carduus vulgaris Savi.

Photo © Adrienne van den Beemt, CC BY 4.0.

↑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

Field Thistle (Cirsium discolor)
View - Compare

↑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)

↑Photo gallery

Photo © Becky, Public Domain.

Photo © jeffreyaewick, Public Domain.

Photo © Jim Rusconi, Public Domain.

Photo © Adrienne van den Beemt, CC BY 4.0.

Photo © Katja Schulz, CC BY 4.0.

Photo © Emily Summerbell, CC BY 4.0.

Photo © Sandy Wolkenberg, CC BY 4.0.

Photo © Sandy Wolkenberg, CC BY 4.0.

Photo © Sandy Wolkenberg, CC BY 4.0.