Coefficient of Conservatism:
*
Coefficient of Wetness:
3
Wetness Index:
FACU
Physiognomy:
Ad A-Forb
B. S. Walters
Native to Central and South America but like G. parviflora now a nearly cosmopolitan weed of temperate and subtropical areas. Thrives in populated areas: poorly kept lawns; along hedges, sidewalks, and gardens; roadsides and parks; and in greenhouses. First collected in Michigan in Ingham Co. (1892), but soon (1901) found in Detroit, Wayne Co.; widespread across southern Michigan and even in Gogebic Co. before 1920.
Locations
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Allegan County
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Alpena 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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Delta County
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Emmet County
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Gogebic County
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Hillsdale County
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Houghton County
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Ingham County
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Kalamazoo County
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Kent County
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Lenawee County
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Livingston County
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Marquette County
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Mecosta County
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Menominee County
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Monroe County
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Muskegon County
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Newaygo County
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Oceana County
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Ottawa County
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Schoolcraft County
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St. Clair 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. October 21, 2020. https://michiganflora.net/species.aspx?id=335.