天津特产,已有数百年的种植历史。叶宽,叶长,质嫩味鲜,高产,适应性强,一年四季都能生长。卫韭主要分为大黄苗、大青苗、卷毛三大品系,以大黄苗尤著。大黄苗绿色较浅,叶片最宽,尖端呈剑状,叶鞘横断呈扁圆形,分蘖力最强。大青苗绿色较深,叶片较狭长;叶鞘圆形伸长较快,可通 Tianjin specialty, has hundreds of years of planting history. Leaf width, leaf length, tender and delicious, high yield, adaptability, can grow all year round. Wei chives are mainly divided into rhubarb seedling, Daqingmiao, curly three strains, especially rhubarb seedlings. Rhubarb green light, leaves the widest, tip was sword-shaped, leaf sheath transversal was oblate, the strongest tillering ability. Big young green darker, more narrow blade; leaf sheath round fast, can be passed