Radical 59
Radical 59 or radical bristle meaning "bristle" or "beard" is one of the 31 Kangxi radicals composed of three strokes.
In the Kangxi Dictionary, there are 62 characters to be found under this radical.
彡 is also the 42nd indexing component in the Table of Indexing Chinese Character Components predominantly adopted by Simplified Chinese dictionaries published in mainland China. It is extremely similar to the katakana Mi, the only difference is being flipped 180 degrees.