musk plant

noun

a sticky-hairy plant, Mimulus moschata, of the figwort family, native to northern and western North America, having pale-yellow flowers and a musky odor.

Origin of musk plant

First recorded in 1775–85

Also called musk flower.

M. moschatus is the Musk-plant, of which the variety Harrisoni is a greatly improved form, with much larger yellow flowers.
Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 7
Various
But ravines are not dank in the clear fall days; and by October the musk-plant has wilted dry.
The Story of the Trapper
A. C. Laut
A bed of musk-plant yielded up languorous sighs to the warmed air.
Jessamine
Marion Harland