Please try our next iteration of the Michigan Flora Online here. Beginning on February 1, 2023, will point to this new site.

The new site offers several benefits over the existing website, including real coordinate mapping, giving a clearer view of the density of documentation as well as more precision about plant distributions and their link to landforms. We will also have the ability to update species pages more regularly, both in terms of new collections and as more existing Michigan specimens are georeferenced. In addition, we have a better photo display, and offer indented keys.

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The spiny foliage suggests a true thistle (Cirsium), but the heads are very different in shape and structure. The spherical compound heads consist actually of numerous 1-flowered heads, each with an involucre of several spine-tipped phyllaries surrounded by abundant stiff hairs or setae around the base. Other species are cultivated and may also escape.

All species found in Echinops

Echinops sphaerocephalusGLOBE-THISTLE 


MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. February 1, 2023.