Hognut or
pignut can mean any of a number of unrelated plants:
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Bunium bulbocastanum (black cumin) or Conopodium majus (kippernut) of the Apiaceae
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, particularly Hoffmannseggia glauca (Indian rushpea) and Hoffmannseggia densiflora, of the Fabaceae
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Carya glabra (pignut hickory) of the Juglandaceae
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Hyptis suaveolens (chan), also known as Mesosphaerum suaveolens, of the Lamiaceae
pig nut may also refer to pelleted Animal feed designed for pigs.
