A simple leaf is singular and never divided into smaller leaflet units. It is always attached to a twig by its stem or the petiole. The margins, or edges, of the simple leaf can be smooth, jagged ...

If a leaf has an undivided blade, it is classified as a simple leaf. ... They grow in pairs along the stem. Examples: Ash, Maple, and Olive. 2. of 7. Alternate Leaves . Treehugger / Dan Amos.