leek

A perennial with strap-shaped, sheathing leaves in two rows, and white flowers sometimes mixed with bulbils. Its origin is unknown, but it is probably derived from the wild leek of Europe (Allium ampeloprasum), and is now cultivated as a vegetable (Allium porrum). (Family: Liliaceae.)

The leek (Allium ampeloprasum var. The leek is also sometimes classified as Allium porrum (L.)

Rather than forming a tight bulb such as the onion, the leek produces a long cylinder of bundled leaf sheaths which are generally blanched by pushing soil around them (trenching).

Leek cultivars can be subdivided in several ways, but the most common types are "summer leeks", intended for harvest in the season when planted, and overwintering leeks, meant to be harvested in the spring of the year following planting. http://leekspin.com