Mimulus moschatus is a species of monkeyflower known by the common name muskflower. It is native to western North America from British Columbia to California to the Rocky Mountains, where it grows in moist, partially shaded habitat in mountains, woodlands, and other areas. It also occurs in eastern North America where it may be native or introduced. It is known from Chile and parts of Europe, including England and Finland, where it grows wild after having escaped This is a rhizomatous perennial herb which is hairless to hairy, sometimes slimy in texture, and generally musky in scent. It is variable in appearance. The prostrate or upright stem grows up to 30 centimeters long. The oppositely arranged leaves are mostly oval in shape and may reach 6 centimeters long. The tubular flower is yellow in color, its tube just a few millimeters wide and widening at the lobed mouth. It may be up to 2.6 centimeters long.