Equisetum sylvaticum L.
Common Name: WOODLAND HORSETAIL
Coefficient of Conservatism: 5
Coefficient of Wetness: -3
Wetness Index: FACW
Physiognomy: Nt Fern Al

Swamps and moist forests; coniferous, mixed or deciduous, moist thickets; often on forest edges or even in open meadows and swales northward; rare southward.


This is a distinctive species with the coppery sheaths on the main stem, and beautiful with the primary branches consistently again gracefully branched, unlike all our other species. The stems typically arch, with the whorls of branches giving a distinctive layered look. Equisetum sylvaticum colonies are regularly fertile and also reliably produce symmetrical branches on fertile shoots as the strobili mature, making recognition easy.  

Locations

Alcona County
Alger County
Alpena County
Antrim County
Arenac County
Baraga County
Bay County
Benzie County
Cheboygan County
Chippewa County
    Including Drummond Island
Clare County
Crawford County
Delta County
Dickinson County
Emmet County
Gladwin County
Gogebic County
Grand Traverse County
Gratiot County
Houghton County
Huron County
Iosco County
Iron County
Jackson County
Kalamazoo County
Kalkaska County
Kent County
Keweenaw County
    Including Isle Royale
Lake County
Lapeer County
Leelanau County
    Including Manitou Islands
Luce County
Mackinac County
Macomb County
Manistee County
Marquette County
Mason County
Mecosta County
Menominee County
Midland County
Missaukee County
Montmorency County
Muskegon County
Newaygo County
Oakland County
Oceana County
Ogemaw County
Ontonagon County
Oscoda County
Otsego County
Presque Isle County
Roscommon County
Saginaw County
Schoolcraft County
St. Clair County
Tuscola County
Washtenaw County
Wexford County

Citation:

MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. December 18, 2017. http://www.michiganflora.net/species.aspx?id=1204.