Coefficient of Conservatism:
*
Coefficient of Wetness:
3
Wetness Index:
FACU
Physiognomy:
Ad A-Forb
R. W. Smith
Fields, roadsides, fencerows, gardens, vacant lots, and other disturbed ground. A native of China, introduced into the New World before 1750 as a potential fiber crop but now a common weed of row crops, such as corn and soybeans. First collected in Michigan in 1860 in Washtenaw Co. Frequent in southern Michigan, scarce northwards. The petals are ca. 7–10 mm long, usually yellow-orange.
Locations
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Allegan County
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Alpena County
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Bay County
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Berrien County
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Calhoun County
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Cass County
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Cheboygan County
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Clinton County
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Eaton County
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Genesee County
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Gogebic County
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Grand Traverse County
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Hillsdale County
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Ingham County
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Isabella County
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Jackson County
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Kalamazoo County
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Kent County
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Lake County
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Lenawee County
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Mason County
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Mecosta County
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Monroe County
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Muskegon County
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Newaygo County
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Oakland County
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Ottawa County
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Presque Isle County
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Saginaw County
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Schoolcraft County
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St. Clair County
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Van Buren 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. September 25, 2020. https://michiganflora.net/species.aspx?id=1666.