Common Name:
BLUE VERVAIN
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Coefficient of Conservatism:
4
Coefficient of Wetness:
-3
Wetness Index:
FACW
Physiognomy:
Nt P-Forb
B. S. Walters
Marshes, ditches, wet shores and stream banks; thickets and openings in swamps.
Usually a tall, conspicuous plant with somewhat candelabrum-like inflorescence, but may be as short as 15 cm with a single spike. White-flowered plants have been named f. albiflora Moldenke. Pink- or rose-flowered plants are also known from the state. An apparent hybrid with V. stricta [V. ×rydbergii Moldenke] was collected in 1959 at the George Reserve near Pinckney, Livingston Co. It has the aspect of V. hastata, but slightly larger calyces and corollas and hoary pubescence on the undersides of the leaves.
Locations
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Alcona County
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Alger County
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Allegan County
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Alpena County
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Arenac County
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Including Charity Island
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Baraga County
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Barry County
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Bay 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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Cass County
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Charlevoix County
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Including Beaver Island
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Cheboygan County
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Chippewa County
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Including Drummond Island
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Clare County
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Clinton County
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Crawford County
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Delta County
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Dickinson County
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Eaton County
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Emmet County
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Genesee County
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Gladwin County
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Gogebic County
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Grand Traverse County
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Gratiot County
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Hillsdale County
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Houghton County
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Huron County
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Ingham County
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Iosco County
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Iron County
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Isabella 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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Lake County
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Lapeer County
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Leelanau County
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Including Fox Islands
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Lenawee County
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Livingston County
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Luce County
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Mackinac County
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Only on Bois Blanc, Mackinac, Round Islands
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Macomb County
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Manistee County
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Marquette County
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Mason County
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Mecosta County
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Menominee County
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Midland County
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Missaukee County
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Monroe County
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Montcalm County
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Montmorency County
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Muskegon County
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Newaygo County
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Oakland County
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Oceana County
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Ogemaw 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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Saginaw County
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Sanilac County
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Schoolcraft County
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Shiawassee County
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St. Clair County
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St. Joseph 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. July 6, 2020. https://www.michiganflora.net/species.aspx?id=2770.