Phellinus linteus (Japanese "meshimakobu", Chinese "song gen", Korean "sanghwang", English "Mesima", American English "black hoof mushroom") is a mushroom. It is shaped like a hoof, has a bitter taste, and in the wild grows on mulberry trees. The stem's color ranges from dark brown to black. In Korean traditional medicine, the mushroom is consumed in the form of hot tea.