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[2][3] or earthnut.

[4] It reaches about 60 cm (24 in) tall and 25 cm (9.8 in) wide, bearing frilly leaves and hermaphroditic flowers; it is pollinated by insects and self-fertile.

[citation needed] The small, rounded taproot is edible raw or cooked, and said to taste like sweet chestnuts.

[citation needed] The leaf can be used as an herb or garnish similar to parsley.