Allium ampeloprasum is a member of the onion genus Allium, in the family Alliaceae. The wild plant is commonly known as (Broadleaf) Wild Leek - not to be confused with the N. American Allium tricoccum of the same name. Its native range is S. Europe to W. Asia, and seems to have been introduced to Britain by prehistoric people, where its habitat consists of rocky places near the coast in south-west England and Wales.[1][2] It has been differentiated into three different cultivated vegetables, namely leek, elephant garlic and kurrat.
^ CHRISTOPHER D. PRESTON, DAVID A. PEARMAN, ALLAN R. HALL (2004) Archaeophytes in Britain Botanical Journal of the Linnean Society 145 (3), 257–294 doi:10.1111/j.1095-8339.2004.00284.x, p. 264