Few average Joes can correctly identify every species of oak growing in North America. That’s the kind of Final Jeopardy-level knowledge typically reserved for foresters, wildlife biologists, and very ...

Oak trees have been around for more than 50 million years, with individual trees easily living 1,000 years. One of the oldest oak trees in the U.S. is believed to be at least 2,624 years old. The ...

You don’t have to hunt deer for very long to realize that oak trees and the acorns they drop each fall are hugely important to deer. If fact, most hunters know that the majority oak trees fall into ...

Many plants are poisonous to humans and animals alike, which is why it’s important to spot them before it’s too late. As more people venture outside to enjoy warm weather, knowing how to identify and ...

Q. We have a pin oak tree that is approximately 30 feet tall. On the north-facing side of the tree there are many wilted leaves, and there are many balls of strange growth. Pictures of the leaves and ...

Northern red oaks, quercus rubra, are, to me, the cardinals of the oak world: easy to identify. These are beautiful majestic oak trees with rough, furrowed bark. The furrows reveal pale, sometimes ...

Many coast live oak (Quercus agrifolia) trees are showing unusual browning in their canopies in the last month or two. If you look carefully, you may see small, crescent-shaped galls forming on the ...

This is the time of year when people tend to walk through the woods, and come into contact with plants that may not react well with their skin, including poison ivy and poison oak. It is good to know ...

Q: My oak tree looks like it is making fruit the size of ping-pong balls. Now I know that they make acorns, so they couldn't possibly make fruit, right? What are these round plum-looking fruits ...

Climate warming plays a larger role than plant genes in influencing the number and identity of fungal species on oak leaves, especially in autumn. This research by ecologists sheds light on how ...