The center of a tree or shrub stem (from roots to trunk, branches, and twigs) is woody, composed of xylem cells that conduct water from the roots to the upper parts of the tree. That woody section is ...

can almost guarantee the species. Hickory trees have dark gray or brown bark with deep patterned furrows that peel upward.

Bark stripping is a common practice among many species of tree squirrels. Squirrels don’t actually eat the bark; they strip away the top layer to get to the sweet, phloem tissue underneath. Bark ...

Bark – Dark brown, separating into thin, scaly plates on older trees. The point of origination of Serbian spruce (Picea omorika) has been heavily contested. Competing studies have claimed that the ...