MUSK PLANT, Musk Root, Musk Tree, Musk Wood. Various plants possessed of a musky odor. Among these are the common musk plant (Mimulus moschatus); the musk tree (Olearia argophylla) of Tasmania; the musk okra (Hibiscus moschcutos); the musk tree of Jamaica (Trichilia moschata); and the West Indian musk wood (Guarea grandifolia), used in perfumery. The drug called musk root or Sambul, brought from Asia principally through Russia and Persia, is the starchy root of Euryangium Sambul, which has a pure musky odor, and is used as a substitute for musk.