A leaf can be identified by where it emerges from the node, and is generally composed of a blade and petiole. The blade is usually flat and photosynthetic, while the petiole attaches th… See more

In eudicots, leaf blades have netted venation with a central midvein and smaller veins branching off from there; in monocots, veins run parallel to each other without any true midvein. … See more

Most leaves have a stem that attaches its blade to rest of plant called petiole but some do not have one so they are directly attached to plant stem which are known as sessile leav… See more

Some plants will have paired appendages found at base of leaf which are called stipules that can look like leaf or take on different forms such as spines or tendrils . See more