Autumn's fiery-colored leaves have fallen, so now let's look for more subtle beauty in trees and shrubs. Like a developing photographic image, the textures and colors of bark come into view in the ...

Trees with smoother bark are better at repelling attacks by mountain pine beetles, which have difficulty gripping the slippery surface, according to a new study. Trees with smoother bark are better at ...

Trees with smoother bark are better at repelling attacks by mountain pine beetles, which have difficulty gripping the slippery surface, according to a new study by the University of Colorado Boulder.

The reddish gray-brown bark of the red oak tree with its darker vertical markings is one of the key features to identifying the tree in winter. (Clay Wollney) Leaves are the most useful and frequently ...

Clockwise from top left: (1) Two lodgepole pines growing side-by-side with notably different bark textures, (2) a rough-barked limber pine that has been attacked by bark beetles, (3) a limber pine ...

Training one’s eye to identify trees is a fun way to connect with the world around us and can be useful for making home landscape selections. Trees are often identified using leaf shape and color, ...