Leaf

Each node of the culm bears a leaf which has following parts. 

• Leaf sheath: It originates from the node of a culm and encloses it.
• Leaf blade: It is the upper expanded part of leaf and begins at node, where it is jointed with leaf sheath. At the joint there is a thick collar.
• Auricle: these are having appendages at the base of the leaf blade.
• Ligule: It is a thin papery structure just above the auricles.
• Flag leaf: It is the uppermost leaf just below the panicle. It is generally shorter in length and remains erect at an angle.

                                         

                                                     Leaf of rice