Pecíolo
Pecíolo is the botanical term for the stalk that attaches a leaf blade to the stem of a plant. It is essentially the leaf's stem. The petiole's primary function is to support the leaf blade and to position it in a way that maximizes light absorption for photosynthesis. It also serves as a conduit, containing vascular tissues (xylem and phloem) that transport water and nutrients from the stem to the leaf, and sugars produced during photosynthesis from the leaf to the rest of the plant.
The length and structure of petioles can vary greatly among different plant species. Some petioles are very
In certain plants, the petiole can undergo modifications. For example, in some species of *Acacia*, the petiole