Xu Collection, Lower Volume
Radical: Leaf (yè)
Kangxi Strokes: 9
Page 1399, Entry 01
Collected Rhymes (Jiyun): Pronounced xié.
Rhyme Anthology (Yunhui) and Correct Rhymes (Zhengyun): Pronounced jié.
The pronunciation is the same as xié.
Explanations of Characters (Shuowen Jiezi) interprets it as the head. The character form is composed of the components for head and person.
Furthermore, Explanation of the Six Writings (Liushugu) argues that this character is the same as the character for head and should not be pronounced as xié. The Explanation of Characters (Shuowen Jiezi) incorrectly lists this as a separate radical and provides phonetic information.