Fleshy leaves: Plants with fleshy leaves are called succulents and are usually found in areas like deserts. Their leaves are green and fleshy becuase they store water in them which can be used under adverse conditions. For example, opuntia.
Spines on leaf: Many plants have spines on their leaves. It is a way of protecting themselves from being eaten and destroyed by animals. For example, Acacia and aloe vera.
Leaf with rough surface: Asperifolia is a type of plant which has rough leaves. It belongs to the category of shrubs.
Leaf with smooth surface: Salix caroliniana or commonly known as Southern Willow is a plant which has smooth leaves. The simple smooth-edged narrow leaves are 2-4 m long, green above and whitish underneath.