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This character refers to the structure or appearance of the margins of the leaves.
|  | Entire: the leaf margins are not toothed or divided in any way (smooth). |  | Wavy: the leaf margins are not divided but curve up and down (undulate). | 
|  | Crenulate: the leaf margins are cut into small rounded teeth. |  | Toothed: the leaf margins are divided into sharply pointed segments (serrate). | 
|  | Lobed: the leaf margins are divided into blunt segments. |