| The leaf is usually ternately divided, the petiolule about equalling the blade in length. |
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| It follows that biternate leaves are doubly ternate, with the ternate divisions again ternately divided. |
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| The plant has ferny, pinnately or ternately decompound leaves and produces compound umbels with small white or pinkish flowers that are attractive to bees. |
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| Ternately compound leaves come in threes, such as poison ivy. |
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