Erysimum cheiranthoides L.
Common Name: WORMSEED MUSTARD
Coefficient of Conservatism: *
Coefficient of Wetness: 3
Wetness Index: FACU
Physiognomy: Ad A-Forb

Roadsides, railroads, fields, gardens, and disturbed places; river banks, thickets, shores, marshy and muddy ground; a species usually, though not always, considered introduced in this part of North America, found in natural as well as human-disturbed ground in both hemispheres. The earliest collection seen from the state dates from 1872 in Marquette Co. A species of quite distinctive aspect, even the young fruit generally more erect (at times like little candles) than the strongly divergent and very slender pedicels. This is our only common yellow-flowered crucifer with entire leaves and the fruit a silique.

Locations

Alger County
Allegan County
Alpena County
Antrim County
Arenac County
Baraga County
Bay County
Benzie County
Berrien County
Calhoun County
Charlevoix County
    Including Beaver Island
Cheboygan County
Chippewa County
Clinton County
Crawford County
Delta County
Eaton County
Emmet County
Hillsdale County
Houghton County
Huron County
Ingham County
Ionia County
Iosco County
Iron County
Isabella County
Kalamazoo County
Kent County
Keweenaw County
    Including Isle Royale
Lapeer County
Leelanau County
    Including Manitou Islands
Lenawee County
Luce County
Mackinac County
    Including Bois Blanc, Mackinac, Round Islands
Marquette County
Mecosta County
Menominee County
Midland County
Monroe County
Muskegon County
Oakland County
Oceana County
Ontonagon County
Osceola County
Ottawa County
Presque Isle County
Saginaw County
Sanilac County
Schoolcraft County
St. Clair 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 17, 2017. http://www.michiganflora.net/species.aspx?id=651.