Spiraea tomentosa L.
Common Name: HARDHACK, STEEPLEBUSH
Coefficient of Conservatism: 5
Coefficient of Wetness: -3
Wetness Index: FACW
Physiognomy: Nt Shrub

Bogs, tamarack swamps, meadows, sandy-peaty shores and dried lake-beds, marshes, borders of ponds; often with S. alba.

The flowers are normally an attractive pink. A white-flowered form is known but has apparently not yet been found in Michigan; the tomentose leaves would readily distinguish it from S. alba. The tomentum on the undersides of the leaves is yellowish or brownish.

Locations

Alger County
Allegan County
Barry County
Berrien County
Branch County
Calhoun County
Cass County
Cheboygan County
Clare County
Delta County
Gogebic County
Ingham County
Ionia County
Jackson County
Kalamazoo County
Kent County
Lake County
Lenawee County
Livingston County
Mason County
Midland County
Monroe County
Muskegon County
Newaygo County
Oakland County
Oceana County
Ottawa County
Saginaw County
Schoolcraft County
St. Clair County
St. Joseph County
Van Buren County
Washtenaw County
Wayne 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=2575.