Across cities and suburbs, a curious pattern keeps turning up in aerial photos and field surveys alike: trees that stand ...

Once you look at trees through the eyes of a dendrochronologist, you never quite see the leafy wonders the same way again. Peel away the hard, rough bark and there is a living document, history ...

Leonardo da Vinci’s sketch of a tree illustrates the principle that combined thickness is preserved at different stages of ramification. The math that describes the branching pattern of trees in ...

He taught us to recognize the diamond pattern on hickory bark and reminded us to check whether branches were opposite or ...

What makes a tree a tree? Or rather, why can we recognize trees in even quite abstract depictions when they are so varied in nature? Researchers have found a clue in the branches, and used math to ...