苜蓿,南方也叫金花菜、三叶菜、盘岐头,是分布在长江流域的一种野菜.所谓“草头”,就是苜蓿的嫩芽.苜蓿有黄花和紫花之分,前者多长在南方,后者多长在北方.它原是一种畜禽都爱吃的优质饲料,有“苜蓿长过腰,骡马不跌膘”的说法.人们开始食用它是后来的事.过去苜蓿一直被作为清苦生活 Medicago sativa, also known as southern cauliflower, clover, dish Qi head, is distributed in the Yangtze River Basin, a wild plant called the “grass head” is the sprout of alfalfa alfalfa has yellow and purple flowers, the former long in the South, which grow in the north.It was originally a good feed loving livestock and poultry, there is “alfalfa over the waist, the mule does not fall 膘” argument.People began to eat it is a matter later .In the past alfalfa Has been as a bitter life