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Bull Thistle (Cirsium vulgare (Savi) Ten.)

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

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Bull Thistle
Photo © Adrienne van den Beemt, CC BY 4.0.

Summary

A biennial native to Europe and invasive in most of North America.

Range - Expand

LegendColor
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.

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.