phyllodium
/fɪˈloʊdiəm/
noun
- A flattened leafstalk that functions as a leaf, found in some plants such as acacias.
- The phyllodium of the acacia reduces water loss in hot environments.
- The plant's phyllodium was broad and green, performing photosynthesis.
- In botany class, we learned how a phyllodium differs from a true leaf.