phyllodium definition

  • noun:
    • A petiole dilated into the form of a blade, and often with vertical edges, as in the Australian acacias.
    • A petiole dilated to the kind of a blade, and in most cases with vertical edges, such as the Australian acacias.
    • In botany, a petiole which usurps the shape and function of a leaf-blade, as with many species of Acacia.

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