Cambium is an example of

Cambium is a prime example of lateral meristem, also known as secondary meristem. Unlike apical meristems, which are located at the tips of roots and shoots to facilitate longitudinal growth, lateral meristems are responsible for increasing the girth or thickness of the plant. This process is known as secondary growth [3]. The two primary types of lateral meristems are the vascular cambium, which produces secondary xylem and phloem, and the cork cambium, which produces the bark [3]. The cambium consists of a thin layer of actively dividing living cells that generate new cells annually, allowing woody plants to grow wider [3]. While intercalary meristems are found at the base of leaves or internodes in monocots, the cambium specifically functions as a lateral tissue to provide structural diameter.

Sources

1. [2] https://pmc.ncbi.nlm.nih.gov/articles/PMC4463761/
2. [3] https://oertx.highered.texas.gov/courseware/lesson/1766/student/?section=3
3. [1] Environment, Shankar IAS Acedemy .(ed 10th) > Chapter 13: Plant Diversity of India > Cambium: > p. 204