槐树
huái shù · HSK 7
locust tree
🌳 槐 huái = locust tree + 树 shù = tree; the 木 wood radical on the left marks it as a tree
树 — wood 木 + 對 (phonetic, simplified to 对)
树 originally combined 木 'tree' with 尌, suggesting planting something upright. The right side served mainly as a phonetic clue, while 木 carried the meaning. Over time it came to mean both 'tree' and the verb 'to plant' or 'establish'.