Tree with serrated leaves

ELM

Its rough-edged leaves often form a vase-like silhouette in parks and streets.

The clue "Tree with serrated leaves" points to "ELM" because elm trees are known for their jagged, toothed leaf edges. While other trees like oaks or maples also have serrated leaves, "elm" fits neatly into most crossword grids as a short, common answer. The clue is straightforward—no wordplay or hidden meanings—just a direct botanical fact.