Leaf base is sheathing in (1) Wheat (2) Maize (3) Grass (4) All of the above

Answer: (4)

Generally leaf base, petiole, and lamina, together form the main parts of a leaf.

leaf base is the part where a leaf attaches to the stem. Leaf base has two small leaf-like structure called stipules. In plants like paddy, wheat, and other monocotyledons, this leaf base is wide and masks the stem.