Why do you think plants with herbaceous stems do not grow very tall?

Plants with herbaceous stems typically do not grow very tall because their stems lack the woody structure and rigidity found in trees and shrubs. Herbaceous stems are soft and flexible, making them more susceptible to bending and breaking under their own weight or during strong winds. Additionally, these plants often rely on rapid growth and reproduction rather than height, which allows them to thrive in various environments without the need for extensive support structures. Consequently, their energy is more efficiently directed towards leaf and flower production rather than stem height.