Common Name:
PLUMELESS THISTLE
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Coefficient of Conservatism:
*
Coefficient of Wetness:
5
Wetness Index:
UPL
Physiognomy:
Ad B-Forb
A. A. Reznicek
Roadsides, railroads, fields, farmyards, and other disturbed sites. First collected in 1920 in Washtenaw Co.
In areas of the Great Lakes region where both this and C. nutans are common and regularly co-occur, hybrids (C. ×orthocephalus Wallr.) are regular. These have not yet been seen in Michigan, but doubtless will be found in time.
Locations
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Antrim County
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Arenac County
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Charlevoix County
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Only on Beaver Island
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Cheboygan County
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Emmet County
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Kalamazoo County
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Lenawee County
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Mackinac County
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Montmorency County
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Oakland County
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Washtenaw County
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Wayne County
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Citation:
MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. July 20, 2018. https://michiganflora.net/species.aspx?id=265.