As the infection takes hold, the spots grow and the centers of the spots turn pale gray, while their borders take on a red, brown or purple color. In the middle of the pattern, you may see small black ...

Steve Nix is a member of the Society of American Foresters and a former forest resources analyst for the state of Alabama. Hickory trees have a leaf with less than nine leaflets and an alternate leaf ...

Steve Nix is a member of the Society of American Foresters and a former forest resources analyst for the state of Alabama. Trees are among the earth's most useful and beautiful products of nature.

A new iPhone app called LeafSnap is a field guide for tech-friendly naturalists. It can identify a tree's species by analyzing a photograph of its leaf. [partner id ...

Computers are gaining on our botany skills. Scientists have developed software that combines machine learning and computer vision to guess which plant family a leaf belongs to. Although it's designed ...

A computer program that learns and can categorize leaves into large evolutionary categories such as plant families will lead to greatly improved fossil identification and a better understanding of ...

Fossil plants reveal the evolution of green life on Earth, but the most abundant samples that are found -- fossil leaves -- are also the most challenging to identify. A large, open-access visual leaf ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. DENVER — As you travel around Colorado to ...

Spring is in full bloom and trees are beginning to look green again. Learning how to identify trees in yards, neighborhoods and local parks provides insight into the diversity and relationships found ...