phyllode

noun

(Gr. phyllon: leaf; eidô: to seem) A flat expanded, winged, petiole that replaces the blade of a foliage leaf, that fulfills the same functions, and is analogous to a cladophyll; i.e. a leaf whose blade is much reduced or absent, and whose petiole and rachis have assumed the functions of the whole leaf. Cf. cladode, cladophyll.