Etymology: Mimulus: may come either from Greek mimo, "an ape," because of resemblance of markings of seeds to face of a monkey, or from Latin mimus, "an actor or mimic," because flower is like mouthpiece of one of the grinning masks worn by classical actors.
Plants: erect, perennial, 6"-40" tall forb, smooth; stems 4-angled with narrow wings
Leaves: opposite, stalkless
Flowers: pink to blue, 5-parted, 3/4"-1" long, lower lip arching in the open throat, sepals connected into a tube, 4 stamens, long-stalked flowers from the leaf axils; blooms July-Sept.
Habitat: full sun; wet to moist; meadows, shores, streambanks; in sandy, loamy soil
Conservation Status: Native