Black hoof mushroom (Phellinus linteus, sanghuang in Chinese, meshimakobu in Japanese, sangwhang in Korean) is one of the wood-decaying Basidiomycete mushrooms from the family Polyporaceae that prefer mulberries, it can also be found on oaks and other deciduous trees.

Black hoof mushroom has been known in Asia for millennia and is part of its traditional medicine. It is also mentioned in the most famous Chinese herbal, Shennong, which began to be written during the Han Dynasty about 200 years BC. A pharmacopoeia written by Quan Zhen during the Tang Dynasty describes the use of black hoof mushroom in traditional Chinese medicine. The mushroom has maintained its popularity to this day and is still widely used, not only in traditional Chinese medicine, but many trials and clinical studies are being conducted. Compared to other mushrooms, it excels in its extraordinary ability to remove Shi Re (moist heat) from the body and break down Xue Yu (blood stasis). It achieves this with its cold nature and bitter taste.