Rubus setosus Bigelow
Common Name: BRISTLY BLACKBERRY
Coefficient of Conservatism: 3
Coefficient of Wetness: -3
Wetness Index: FACW
Physiognomy: Nt Shrub

Sandy fields, barrens, pine or aspen savanna, shores, and forested dunes; also in moist places: meadows, borders of marshes and swamps, even bog mats.

This is a group of essentially northern range, well represented in Michigan. Plants of this complex are in some ways often quite similar to those of the R. hispidus complex, especially in the bristles or elongate slender prickles; and the leaflets may also have the veins impressed above; however, the habit is generally a little stouter, with erect, ascending, or arching (but sometimes trailing) canes of medium size and not ordinarily rooting at the tip. The leaflets tend to be larger and acute to acuminate and deciduous. The flowers, too, run larger, and the inflorescence tends to be a broad but relatively few-flowered raceme, often glandular. This complex, unfortunately, seems like a repository for plants with the armature of R. hispidus but differing in enough other characters so as not to fit comfortably in that complex.

Locations

Alger County
Alpena County
Baraga County
Calhoun County
Charlevoix County
    Only on Beaver Island
Cheboygan County
Chippewa County
Crawford County
Delta County
Emmet County
Grand Traverse County
Hillsdale County
Houghton County
Ingham County
Iosco County
Iron County
Kalamazoo County
Kalkaska County
Keweenaw County
Lake County
Leelanau County
Lenawee County
Livingston County
Luce County
Mackinac County
Marquette County
Menominee County
Monroe County
Montcalm County
Muskegon County
Oakland County
Oceana County
Ogemaw County
Ontonagon County
Oscoda County
Schoolcraft County
St. Clair 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 10, 2017. http://www.michiganflora.net/species.aspx?id=2564.