What is the most common life form in monocotyledonous plants?

In nature, there are three types of life forms in plants – grasses, trees and shrubs.
Monocotyledonous plants are representatives in which cambium is absent in the structure of the stem. Therefore, trees and shrubs are not found among them. Since there is a cambium in the trunk of these life forms. This means that the life form found in representatives of the class monocotyledons is herbs.
P.S. The concept of “tillering” in the development of wheat should not be confused. It has nothing to do with the concept of a bush.