Answer:
Based on the structure of leaf
Explanation:
Palm trees have a specific growth pattern in which they use the beach sand as the base for nourishment source through roots, use salty water for mineral transportation with in the cell and can thrive is varied climatic condition from desert to sandy beach.
It is easy to classify a palm tree based on their geographical location. Biologically, botanist uses their leaf structure to identify their type .
Palm is not considered as a tree as there is no secondary growth in it and also it lacks woody structure within it.
Thus, "structure" of a leaf is used to identify the class of a palm tree in a tropical forest.
