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Leaf - Wikipedia, the free encyclopedia |
 | | In clasping leaves, the blade partially or wholly surrounds the stem, giving the impression that the shoot grows through the leaf such as in Claytonia perfoliata of the purslane family (Portulacaceae). |
| | In some Acacia species, such as the Koa Tree (Acacia koa), the petioles are expanded or broadened and function like leaf blades; these are called phyllodes. |
| | There may or may not be normal pinnate leaves at the tip of the phyllode. |
| en.wikipedia.org /wiki/Leaf (2729 words) |
