Pearl onion
 The true pearl onion (A. ampeloprasum var. sectivum or A. ampeloprasum 'Pearl-Onion Group') is a close relative of the leek (A. ampeloprasum var. porrum) and may be distinguished from common onions by having only a single storage leaf similar to cloves of garlic. They are cultivated mostly in Germany the Netherlands and Italy; usually in home gardens although formerly on a commercial scale.