Q: We are curious to know the identity of a tree we saw in a park, surviving the Southwest climate that has leaves that look like a maple and a round spiky seed pod. Can you tell us?

My sycamore trees look absolutely terrible, with very few leaves growing yet — they seem to have been dropping off over the last few weeks, making a mess in the garden. Is there something that I can ...

The lawn between the house and the lake is brown. Even though it hasn’t rained much, the brown color isn’t due to lack of precipitation. Brown leaves blanket the grass, specifically sycamore leaves.

Question: My ash tree and sycamore tree are losing leaves, which are somewhat disfigured and have blackened areas on the leaves. What should I do? Answer: Recent rains have led to a buildup of fungal ...

The spiky, iconic Canadian maple leaf. A large, lush Florida palm leaf. Thin aspen leaves rustling in the crisp Colorado air. You can probably recall many different leaf shapes from many different ...

Steve Nix is a member of the Society of American Foresters and a former forest resources analyst for the state of Alabama. Leaves are food factories for the tree. Powered by sunlight, the green ...