This character has two radical-stroke indices in the Unihan as kRSKangXi <?+3> and kRSUnicode <?+3>. However, the Kangxi source points to only radical ?.
Simplified from ?
|For pronunciation and definitions of ? - see ? ("book; codex; collection of bamboo or wooden slips, the traditional form of records in China; etc.").|
(This character, ?, is the simplified form of ?.)