Cornus foemina Mill.
Common Name: GRAY DOGWOOD
Coefficient of Conservatism: 1
Coefficient of Wetness: 0
Wetness Index: FAC
Physiognomy: Nt Shrub

Cornus foemina A. A. Reznicek

Along rivers, streams, and lakes, often forming dense thickets on banks and shores; marshes and swamps; sandy oak and pine forests; fencerows and borders of forests; less often in hardwood forests or prairie remnants. The Marquette Co. record may represent planted shrubs (at Ives Lake).

Cornus foemina subsp. foemina ranges well south of Michigan; our populations are all subsp. racemosa (Lam.) J. S. Wilson. The young branchlets are ± 2-angled or ridged and are nearly or quite glabrous. Fruiting plants, with a more paniculate inflorescence than our other dogwoods and bright red stalks, are easily recognized.

The pith is often white even in 2-year-old twigs, but these have distinctly gray bark, which will separate C. foemina from C. sericea; the leaves also have only 3–4 (–5) lateral veins per side (not so strong or parallel as in C. sericea) and are nearly glabrous beneath, especially on the veins. The leaves of C. sericea often have curly pubescence beneath and have the same number of veins as C. amomum, usually 5. Although the latter typically has reddish twigs (not so bright as in C. sericea), it is readily distinguished from all our other species by the strongly expanded style immediately below the stigma (usually slightly exceeding the stigma) and long calyx lobes. The consistently brownish pith in C. amomum is helpful to distinguish it from all species other than C. drummondii and C. foemina. Fresh young branchlets of C. rugosa are distinctive in the purple flecks on green bark, and these are visible as darker spots even on dried specimens when the bark darkens; it also usually has very broad, ± rotund leaves, often somewhat rough on the upper surface, with more lateral veins, on the average, than other species. Cornus ×friedlanderi W. H. Wagner is a hybrid of this species and C. rugosa (Wagner, 1990).

Locations

Allegan County
Arenac County
Barry County
Bay County
Benzie County
Berrien County
Calhoun County
Cass County
Cheboygan County
Clare County
Clinton County
Crawford County
Delta County
Eaton County
Genesee County
Gladwin County
Gogebic County
Gratiot County
Hillsdale County
Huron County
Ingham County
Ionia County
Iosco County
Isabella County
Jackson County
Kalamazoo County
Kent County
Lake County
Lapeer County
Lenawee County
Livingston County
Luce County
Macomb County
Manistee County
Marquette County
Mason County
Mecosta County
Menominee County
Midland County
Monroe County
Montcalm County
Muskegon County
Newaygo County
Oakland County
Oceana County
Ogemaw County
Osceola County
Oscoda County
Ottawa County
Presque Isle County
Saginaw County
Sanilac County
Shiawassee County
St. Clair County
St. Joseph 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 18, 2017. http://michiganflora.net/species.aspx?id=868.