Lapsana communis L.
Common Name: NIPPLEWORT
Coefficient of Conservatism: *
Coefficient of Wetness: 3
Wetness Index: FACU
Physiognomy: Ad A-Forb

A Eurasian native locally naturalized, becoming abundant in the 1970’s and subsequently. The earliest Michigan collection seen is from Mackinac Island (Mackinac Co.) in 1910, but before 1920 it had also turned up in Oakland, Berrien, and Ingham Cos. Like so many species it was doubtless largely overlooked before it became widespread. Especially characteristic of trails and roadsides in deciduous forests, but also in gardens, hedges, and a diversity of disturbed places.

This is a distinctive species in its small, few-flowered heads of pale yellow flowers in a corymbiform or paniculiform arrangement.

Locations

Alger County
Baraga County
Benzie County
Berrien County
Calhoun County
Chippewa County
Emmet County
Gogebic County
Houghton County
Ingham County
Iron County
Kalamazoo County
Kent County
Keweenaw County
Lapeer County
Leelanau County
Luce County
Mackinac County
    Including Bois Blanc, Mackinac, Round Islands
Mason County
Mecosta County
Newaygo County
Oakland County
Ontonagon County
Ottawa County
Schoolcraft County
Washtenaw 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=390.