If you're examining a leaf with these characteristics, you probably have a broadleaf or deciduous tree that's either an ash, hickory, walnut, pecan, box elder, or black locust.

The tree is famous for its pink and white bracts (a type of modified leaf) and is a popular ornamental variety. In 1915, when Japan famously donated cherry trees to Washington, D.C., the United ...

If you’ve ever had to work on a tree leaf collection, no doubt you included a leaf from Indiana’s state tree. Also known as tulip poplar and yellow poplar, the tuliptree is actually not a poplar at ...

Why are the leaves on the tallest trees all about the same size, and why aren’t those tall trees even taller? It all has to do with basic scientific principles at work in nature, according to ...

This was published 11 years ago Ancient tree turns over an old leaf Nicky Phillips August 18, 2013 — 3.00am Normal text size Larger text size Very large text size ...