pseudo- + petiole
pseudopetiole (plural pseudopetioles)
- (botany) The petiole of some monocotyledon leaves which is not part of the lower leaf zone.
- (botany) A petiole-like constriction of the lamina or similar organ (such as a phyllode or phylloclade).
- (botany) The morphologically distinct proximal section of a petiole to which stipules are attached.