Please try our next iteration of the Michigan Flora Online here. Beginning on February 1, 2023, michiganflora.net 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.

A native of western North America, in Michigan collected in Kent Co. in 1902 as a waif.

In Michigan Flora, this species (and Medicago minima) were excluded, even though most of the other species originally derived from waste spread on farm fields as fertilizer from the felt-boot factory on Mill Street, Grand Rapids were treated in full. In response to the detailed explanation and commentary in Crow (2017), we now include them to be both consistent and comprehensive.

Neither this nor the Medicago are known for becoming established anywhere in northeastern North America, but of the twelve species attributed to felt-boot factory waste by Crow (2017, pg. 105, Table 2), five have become firmly established as part of the flora; including one, Dyssodia papposa, that has started to spread only recently. It seems prudent to be inclusive.

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