薯 is a Japanese kanji written with 16 strokes, listed here under the keyword “yam”. It is built from 署 (signature) and 艹 (mugwort). In Remembering the Kanji by James W. Heisig it is frame 2451.
On KumiJi Glyph Explorer, open the parts search and type “signature” + “mugwort”. 薯 is among the results, together with every other character containing the same shapes.
Open 薯 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.