👉 Tetrastichal is a term that refers to a type of plant that has four leaves. These plants are known as "tetrastiches," and they are commonly found in regions where there is an abundance of water, such as in tropical climates. Tetrastichal plants have long, narrow leaves that are arranged in a zigzag pattern along the stem, with each leaf having its own set of spines. These spines can be used to protect the plant from predators