Marrubium vulgare L.
Common Name: HOREHOUND
Coefficient of Conservatism: *
Coefficient of Wetness: 3
Wetness Index: FACU
Physiognomy: Ad P-Forb

Marrubium vulgare R. W. Smith

An Old World species escaped to pastures, fields, roadsides, yards, old homesites, and disturbed places. Marrubium has been long cultivated and used to flavor candies, medicines, and beverages, and also with alleged medicinal effects. Apparently much less cultivated (and hence escaped) than formerly; collected in Michigan as early as the First Survey (1838), but there is only one collection (Barry Co.) obtained since 1935.


Barry County
Berrien County
Cass County
Cheboygan County
Huron County
Ingham County
Ionia County
Kalamazoo County
Kent County
Leelanau County
Muskegon County
Oakland County
St. Clair County
Washtenaw County
Wayne County


MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. December 3, 2022.