====== Definition: Petiole ======

The petiole is the small stalk attaching the [[leaf]] blade to the [[stem]]. The petiole usually has the same internal structure as the [[stem]]. Outgrowths appearing on each side of the petiole are called [[stipules]]. Leaves lacking a petiole are called [[sessile]], or clasping when they partly surround the [[leaf]].\\
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Phyllodes are modified petioles. In some plants, the petioles become flattened and widened, while the leaf itself becomes reduced or vanishes altogether. Thus the phyllode comes to serve the purpose of the leaf.