Perennial herb; a non-aromatic mint, arising from rhizomes;
can be identified by the long, sharp-pointed sepals and coarsely toothed
divided lanceolate leaves that are coarsely toothed, simple,
and smooth; up to 9 cm long.
4-petaled white flowers crowded in the axils of the leaves, 3 mm long.
Nutlets about 2 mm long
Erect, unbranched, smooth, square
Forest: Near ponds, lakes, streams, low woods, and wet
Throughout North America except far north and Nevada
Conservation Status-US/ World
Wide: Not threatened
The root can be eaten raw or cooked. The plant is used medicinally
as an astringent, mild narcotic, and a mild sedative. It is also
used to treat thyroid and heart problems, hemorrhoid bleeding, and
post-childbirth ailments like painful breasts. It may also be used
as a permanent dye for linen and wool
Aquatic and Wetland Vascular Plants of the Northern Great Plains.
February 23, 2005. Northern Prairie Wildlife Research Center.
Accessed: November 29, 2005. <http://www.npwrc.usgs.gov/resource/othrdata/plntguid/species/lycoamer.htm>
Healthtouch Online. Accessed: November 29, 2005.
Plants for a
Future. June 2004. Accessed: November 29, 2005. <http://www.pfaf.org/database/plants.php?Lycopus+americanus>
Thieret, John W.
National Audubon Society Field Guide to Wildflowers: Eastern Region
New York: Alfred A. Knopf Inc., 2001.