Wiktionary
pseudopetiole
n. 1 (label en botany) The petiole of some monocotyledon leaves which is not part of the lower leaf zone. 2 (label en botany) A petiole-like constriction of the lamina or similar organ (such as a phyllode or phylloclade). 3 (label en botany) The morphology distinct proximal section of a petiole to which stipules are attached.