Please try our next iteration of the Michigan Flora Online here. Beginning on February 1, 2023, will point to this new site.

The new site offers several benefits over the existing website, including real coordinate mapping, giving a clearer view of the density of documentation as well as more precision about plant distributions and their link to landforms. We will also have the ability to update species pages more regularly, both in terms of new collections and as more existing Michigan specimens are georeferenced. In addition, we have a better photo display, and offer indented keys.

Brassica juncea (L.) Czern.
Coefficient of Conservatism: *
Coefficient of Wetness: 5
Wetness Index: UPL
Physiognomy: Ad A-Forb

Shores, railroads, dumps, fields, and disturbed ground. An Old World species sometimes cultivated for leafy greens or for the seeds as a source of oil or condiment, but also known as a weed. First collected in 1860 in Lenawee Co.

Like B. nigra, much less common than often supposed (or misidentified!), perhaps declining as a result of stricter control of agricultural seed quality (reducing contaminants) and improved cultivation methods.


Charlevoix County
    Only on Beaver Island
Cheboygan County
Emmet County
Genesee County
Houghton County
Ingham County
Kent County
Keweenaw County
Lenawee County
Livingston County
Shiawassee County
St. Joseph County
Wayne County


MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. January 30, 2023.