English

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Persicaria bistorta
 
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Alternative forms

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Etymology

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adder +‎ wort, as it was reputed to cure snakebite.

Noun

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adderwort (countable and uncountable, plural adderworts)

  1. Common bistort (Bistorta officinalis, syn. Persicaria bistorta) or snakeweed.

Further reading

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