Symphyotrichum dumosum (L.) G. L. Nesom
Common Name: BUSHY ASTER
Synonym: Aster dumosus
Coefficient of Conservatism: 7
Coefficient of Wetness: 0
Wetness Index: FAC
Physiognomy: Nt P-Forb

Aster dumosus of Michigan Flora.

Sandy to mucky or marly shores of lakes and ponds (or even wet borrow pits), interdunal hollows; sedge meadows, wet prairies, fens; conifer thickets, sandy banks and clearings, sometimes associated with oaks and jack pines.

The numerous, rather uniform, blunt or acute and callus-tipped bractlets on elongate pedicels (or branchlets) are quite characteristic of this species, but do sometimes occur in S. ontarionis. A few plants with deeply lobed disk corollas, many little bractlets on the pedicels, and leaves glabrous beneath may be hybrids of S. dumosum and S. lateriflorum (or S. ontarionis). Our specimens of S. dumosum are often quite harshly scabrous on one or both surfaces of the leaves, which in some specimens are smooth. The stems are sometimes short-pubescent. The rays are usually white with us, rarely pink or purple. Unusual plants with small heads and short pedicels from Berrien and Van Buren Cos. may be S. racemosum (Elliott) G. L. Nesom, or possibly of hybrid origin; S. racemosum is not acknowledged from Michigan by Brouillet et al. (2006).

Locations

Allegan County
Barry County
Bay County
Benzie County
Berrien County
Calhoun County
Cass County
Clinton County
Crawford County
Emmet County
Hillsdale County
Jackson County
Kalamazoo County
Kent County
Lake County
Lapeer County
Lenawee County
Livingston County
Mackinac County
Macomb County
Mason County
Monroe County
Montcalm County
Muskegon County
Newaygo County
Oakland County
Ottawa County
St. Clair County
Tuscola 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 13, 2017. http://www.michiganflora.net/species.aspx?id=481.