What is cambium
Cambium refers to the slender plant membrane located right underneath the bark of a woody tree or plant.
The cambium has several functions. In woody plants, it produces layers of xylem and phloem, consequently enhancing the stem’s diameter. It also encourages the secondary growth of roots and stems. In some plants, the cambium acts as a healing agent.
In injured plants the cambium may form inside the callus tissues, hence promoting the growth of new cells across the injured surface. Roots and stems normally include three main different types of cambium: vascular cambium, unifacial cambium, and cork cambium.