Radical 22
Radical 22 or radical right open box meaning "box" is one of the 23 Kangxi radicals composed of two strokes.
In the Kangxi Dictionary, there are 64 characters to be found under this radical.
In Traditional Chinese used in Taiwan, Hong Kong and Macau, radical 22, whose two strokes share the same starting point, is slightly different from radical 23, whose second stroke starts is a bit right to the starting point of the first stroke.
In mainland China, the two radicals were unified as right open box 匚, which then became the 8th indexing component in Table of Indexing Chinese Character Components predominantly adopted by Simplified Chinese dictionaries, and the nuance between the two radicals no longer exists; No associated indexing component is left after the merger. This merger also applies to Traditional Chinese characters in China's GB character set.
Radical 22 and radical 23 were also unified in Japanese kanji. JIS character set. Mainstream Japanese fonts and dictionaries do not distinguish between the two radicals.