Term:

Bark

Definition:

All tissue of the trunk and branches external to the vascular cambium.

Notes:

There are two types of bark. The outer bark, which consists of the cork cambium and the tissue laid down toward the outside of the trunk and branches, and the inner bark, which consists of the cambium and the phloem it produces to the outside of the trunk and branches and lies between the cambium and the cork cambium. The cambium produces xylem to toward the center of the trunk and branches.