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.
Common Name:
WEAK ST. JOHN'S-WORT
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Coefficient of Conservatism:
5
Coefficient of Wetness:
-3
Wetness Index:
FACW
Physiognomy:
Nt P-Forb
Moist sandy open ground, meadows and marshes, borders of streams.
Locations
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Berrien County
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Branch County
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Calhoun County
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Grand Traverse County
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Hillsdale County
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Ingham County
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Ionia County
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Jackson County
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Kalamazoo County
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Kent County
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Lenawee County
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Macomb County
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Mecosta County
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Monroe County
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Montcalm County
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Muskegon County
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Oakland County
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Ottawa County
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St. Clair County
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St. Joseph 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. January 30, 2023. https://michiganflora.net/species.aspx?id=1464.