Gew?hnlicher Knollenk?mmel, Bunium bulbocastanum, Echter Knollenk?mmel, auch Gew?hnliche Erdkastanie / 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, Historisch, historical, digital improved reproduction of an original from the 19th century / digital restaurierte Reproduktion einer Originalvorlage aus dem 19. Jahrhundert, genaues Originaldatum nicht bekannt.