Question

Palm is a monocotyledonous plant, yet it increases in girth. Why and how?

Answer 1

Palms, despite being monocotylednous plant show secondary growth, i.e., increase in girth. This is due to the division and enlargement of parenchymatous cells in the ground tissue. Thus, repeated divisions cause increase in girth of stem and this type of growth is referred to as diffused secondary growth.