The pattern made on the leaf by veins is called [[1]].

The pattern formed by veins on a leaf is known as leaf venation. Venation is the arrangement of veins in a leaf that helps transport water, nutrients, and sugars throughout the plant. There are two primary types of venation patterns - parallel venation and reticulate venation. In parallel venation, the veins run parallel to each other and are evenly spaced, while in reticulate venation, the veins form a network or net-like pattern. The leaf venation pattern is a unique feature used to identify different plant species.