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Common Name:
GIANT ST. JOHN'S-WORT
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Coefficient of Conservatism:
8
Coefficient of Wetness:
0
Wetness Index:
FAC
Physiognomy:
Nt P-Forb
M. Demmon
Moist ground along rivers and streams, ditches and wet meadows, borders of marshes and swamps.
This is the tallest of our species of Hypericum, attaining a height of ca. 2 m; it also has by far the largest flowers, capsules, and leaves.
Locations
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Baraga County
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Benzie County
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Berrien County
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Branch County
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Calhoun County
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Charlevoix County
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Delta County
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Dickinson County
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Emmet County
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Gogebic County
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Gratiot County
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Houghton County
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Ingham County
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Ionia County
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Iosco County
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Iron County
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Jackson County
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Kalamazoo County
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Kalkaska County
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Kent County
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Keweenaw County
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Lake County
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Lenawee County
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Livingston County
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Manistee County
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Mason County
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Mecosta County
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Menominee County
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Monroe County
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Newaygo County
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Oakland County
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Ontonagon County
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Oscoda County
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Otsego County
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Ottawa County
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Presque Isle County
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Roscommon County
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Schoolcraft County
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St. Clair County
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Tuscola 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=1457.