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Term Definition
Petiole The stalk of the leaf blade. The petiole and blade together equal the leaf Leaf of a species of Eschweilera. Photo by F. Hernandez (PMA)
Petiole The stalk of a leaf; in compound leaves, the stalk between the leaf attachment on the stem and the insertion of the first leaflet. Features of a simple leaf..
Petiole cross-section A section of a petiole made at right angles to its length just below the start of the blade. Cross-section of a petiole of Couratari pyramidata. Photo by S. A. Mori.