渠 is a Chinese hanzi, listed here under the keyword “ditch”. It is built from 洰 (洰) and 木 (tree). It appears as a component in 4 other characters in this index.
On KumiJi Glyph Explorer, open the parts search and type “洰” + “tree”. 渠 is among the results, together with every other character containing the same shapes.
Open 渠 in the interactive kanji search
to expand every part down to its smallest pieces, add your own names and mnemonic stories,
or search for other characters by their parts.