Resume de l’article : Pourquoi les feuilles des arbres ont-elles des formes si différentes ?

Article’s main point: The shape of tree leaves varies greatly between species and adapts to the climate, the amount of light received, and the tree’s lifestyle. The three primary leaf shapes are:

1. Simple leaves: these are the most common and have a single blade, like those of maple or elm trees.
2. Compound leaves: these leaves are made up of several leaflets, like those of locust or ash trees.
3. Divided leaves: these leaves are deeply lobed and have a single blade, like those of oak or walnut trees.

The response: Tree leaves have diverse shapes, mainly categorized as simple, compound, or divided leaves. These variations stem from evolutionary adaptations to the specific tree’s climate, the amount of light it receives, and its lifestyle.