Opposite leaves are just what they sound like ... alternating pattern. Examples: Hawthorn, Sycamore, Oak, Sassafras, Mulberry, and Dogwood. In a compound leaf, the leaf is divided into leaflets ...

Q: Most years, my hawthorn tree gets lots of brown patches on the leaves. It always seems to grow normally, though, so I wonder if this is a disease I need to worry about? A: Although hawthorn ...