Alyssum alyssoides (L.) L.
Common Name: PALE ALYSSUM
Coefficient of Conservatism: *
Coefficient of Wetness: 5
Wetness Index: UPL
Physiognomy: Ad A-Forb

A plant of Europe and Asia Minor, with us characteristically a weed of railroad embankments, but also common on roadsides, parking lots, gravel pits, and other sandy or gravelly bare places. First collected in 1870 in Genesee Co.

This little densely stellate-pubescent annual is likely to be confused only with Lepidium, in which, however, the fruit is flattened at right angles to the septum rather than parallel to it.

Locations

Alcona County
Allegan County
Alpena County
Bay County
Benzie County
Berrien County
Branch County
Charlevoix County
    Only on Beaver Island
Cheboygan County
Chippewa County
    Only on Drummond Island
Clare County
Crawford County
Delta County
Emmet County
Genesee County
Gladwin County
Grand Traverse County
Gratiot County
Hillsdale County
Huron County
Ingham County
Ionia County
Iosco County
Jackson County
Kalamazoo County
Kent County
Lake County
Leelanau County
    Including Manitou Islands
Lenawee County
Livingston County
Mackinac County
    Only on Bois Blanc, Mackinac, Round Islands
Macomb County
Manistee County
Midland County
Monroe County
Montmorency County
Muskegon County
Newaygo County
Oakland County
Oceana County
Otsego County
Ottawa County
Presque Isle County
Roscommon County
Schoolcraft County
St. Clair County
Tuscola 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 11, 2017. http://michiganflora.net/species.aspx?id=599.