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Marshy ground, muddy shores, roadside ditches. Wet woods and swamps.
All of the continental US except FL and a few western states.
Herbaceous perennial to 1.3 m. Stems smooth, 4-winged or angled. Leaves opposite, sessile, lanceolate to oblanceolate, acuminate, somewhat toothed, to 10 cm below and reduced upwards. Flowers solitary from upper lead axils; pedicels to 4.5 cm and longer than the calyx; calyx green or purple-tinged, 4-angled, the lobes sharply pointed; corolla blue to purple with 2 yellow ridges obscuring the throat, bilabiate; stamens 4. Fruit cylindric.
Flowers late June to September
Wetland indicator: Obligate
A variety of this species, Mimulus ringens L. var. colpophilus Fern., occurs on tidal flats in ME. This genus is well represented in western North America.
Gleason, Henry A. and A. Cronquist. 1991. Manual of Vascular Plants of
Northeastern United States
and Adjacent Canada. Second Ed.
The New York Botanical Garden. Bronx, NY
Swink, F. and G. Wilhelm. 1994. Plants of the Chicago Region.
Indiana Academy of Science. The Morton Arboretum. Lisle, Illinois.
USDA, NRCS. 2002.
The PLANTS Database, Version 3.5 (http://plants.usda.gov).
National Plant Data Center, Baton Rouge, LA 70874-4490 USA.
Michael Hough © 2005