洋葱,又名葱头、圆葱,系百合科二年生蔬菜。发源于中亚,在我国栽培已有悠久的历史。根据鳞茎皮色,洋葱分为黄皮、紫皮、白皮3种类型。主要品种有荸荠扁、大水桃、黄园葱、西安红皮、白皮葱头。从古至今,洋葱是一种佳蔬食物,而且还是一种作用很强的药 Onions, also known as onion, onion, Department of biennial perennial vegetables. Originated in Central Asia, cultivation in our country has a long history. According to bulb color, onion is divided into yellow, purple, white three types. The main varieties are chestnut flat, peach, yellow onion, Xi’an red, white onion. Since ancient times, onion is a good vegetable food, but also a strong role of medicine