Hognut or pignut can mean any of a number of unrelated plants:
* ''
Bunium bulbocastanum
''Bunium bulbocastanum'' is a plant species in the family Apiaceae.
It was once used as a root vegetable in parts of western Europe, and has been called great pignut or earthnut.
Growth
The plant is native to western Europe. It reaches about ...
'' (black cumin) or ''
Conopodium majus
''Conopodium majus'' is a perennial herbaceous flowering plant in the celery family, Apiaceae. Its underground part resembles a chestnut and is sometimes eaten as a wild or cultivated root vegetable. The plant has many English names (many of them ...
'' (kippernut) of the Apiaceae
*
rushpeas, particularly ''
Hoffmannseggia glauca
''Hoffmannseggia glauca'' is a dicot found in the legume family, Fabaceae. Its common names include Indian rushpea, hog potato, and pig nut.
It is a California native that prefers alkaline desert flats, creosote bush communities, and disturbe ...
'' (Indian rushpea) and ''
Hoffmannseggia densiflora
''Hoffmannseggia'' is a genus of flowering plants in the pea family, Fabaceae, known generally as rushpeas. These are Legume, pod-bearing Herbaceous plant, herbs and subshrubs native to the Americas. In North America they range from California an ...
'', of the Fabaceae
* ''
Carya glabra
''Carya glabra'', the pignut hickory, is a common, but not abundant species of hickory in the oak-hickory forest association in the Eastern United States and Canada. Other common names are pignut, sweet pignut, coast pignut hickory, smoothbark ...
'' (pignut hickory) of the Juglandaceae
* ''
Hyptis suaveolens
''Mesosphaerum suaveolens'', synonym ''Hyptis suaveolens'', chia, pignut, or chan, is a branching pseudocereal plant native to tropical regions of Mexico, Central, the West Indies, and South America, as well as being naturalized in tropical par ...
'' (chan), also known as Mesosphaerum suaveolens, of the Lamiaceae
pig nut may also refer to pelleted
Animal feed
Animal feed is food given to domestic animals, especially livestock, in the course of animal husbandry. There are two basic types: fodder and forage. Used alone, the word ''feed'' more often refers to fodder. Animal feed is an important input ...
designed for pigs.
{{plant common name