Hognut or pignut can mean any of a number of unrelated plants:

• Bunium bulbocastanum (black cumin) or Conopodium majus (kippernut) of the Apiaceae
• rushpeas, particularly Hoffmannseggia glauca (Indian rushpea) and Hoffmannseggia densiflora, of the Fabaceae
• Carya glabra (pignut hickory) of the Juglandaceae
• Hyptis suaveolens (chan) of the Lamiaceae

This page is an index of articles on plant species (or higher taxonomic groups) with the same common name (vernacular name).
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