To draw a leaf easily, follow these simple steps:

1. Draw a central line for the stem.
2. Sketch an outline shape of the leaf around the stem; this can be a simple elongated oval or teardrop shape.
3. Draw the leaf edges with gentle curves or slight jaggedness depending on leaf type.
4. Add veins by drawing angled lines starting from the central stem outwards, filling the leaf with parallel veins.
5. Add details such as smaller veins branching from the main veins.
6. Optionally, erase any initial sketch lines and trace the drawing with a pen for a clean finish.
7. You can add colors if desired.

This method breaks the leaf into basic shapes and lines, making it easy even for beginners.