这种生物体长有小小的叶状附属器官。
一种伸展、扁平的叶柄，如果叶片缺失或退化则作为光合器官起作用。叶状柄在各种澳洲的金合欢属中较为常见。
Phyllode an expanded flattened petiole that ACTS as the photosynthetic organ if the lamina is missing or very reduced. Phyllodes are seen in various Australian species of Acacia.
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