Lappula squarrosa (Retz.) Dumort.
Coefficient of Conservatism: *
Coefficient of Wetness: 5
Wetness Index: UPL
Physiognomy: Ad A-Forb

Lappula squarrosa R. W. Smith

A Eurasian species of railroads, roadsides, farmyards, fields, disturbed sandy or gravelly shores, and other disturbed habitats. Evidently spread early to Michigan, for the first collections in the state were made in 1838 (Jackson Co.) and 1840 (Macomb Co.).

This is an easily overlooked but readily recognized plant, with stiffly erect habit (stems simple or much branched), tiny blue flowers, and numerous narrow leaves. The margins of each nutlet have 2 rows of barb-tipped bristles.


Alcona County
Alpena County
Arenac County
Bay County
Charlevoix County
    Including Beaver Island
Cheboygan County
Chippewa County
    Including Drummond Island
Delta County
Dickinson County
Emmet County
Gratiot County
Houghton County
Huron County
Ingham County
Isabella County
Jackson County
Kalamazoo County
Kent County
Keweenaw County
    Including Isle Royale
Lenawee County
Livingston County
Mackinac County
    Including Bois Blanc, Mackinac, Round Islands
Macomb County
Marquette County
Menominee County
Midland County
Oakland County
Oscoda County
Otsego County
Presque Isle County
Saginaw County
St. Clair County
Van Buren County
Washtenaw County
Wayne County


MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. November 30, 2022.