toothache tree

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toothache tree:

see prickly ashprickly ash,
name for two deciduous shrubs or small trees (Zanthoxylum americanum and Z. clava-herculis) of the family Rutaceae (rue family). They are native to E North America and have prickly twigs and foliage similar to that of the unrelated ash tree.
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It was the thorny prickly ash, also known as Hercules club, sting-a-tongue, toothache tree, wild orange, sea ash and some others.
Annie Eliza is excited to see yellow-chested warblers, to watch a woodpecker among the chinquopins and toothache trees in the family cemetery (53-58).