Alfalfa: cultivated or semi-wild all over the country, born in fields, roadsides, wilderness, grasslands, river banks and valleys.

Alfalfa: distributed in northeast, north and northwest China. Europe is relatively rich, and all countries in the world have introduced and cultivated it.

2. Different morphological characteristics

Alfalfa: 30- 100 cm tall. The root system goes deep into the soil layer and the root neck is developed. Inflorescence is racemose or capitate, with a length of1-2.5cm and 5-30 flowers. Corolla is light yellow, deep blue to deep purple, with flowering period from May to July and fruiting period from June to August.

Alfalfa: 40- 100 cm high. Woody roots, stems procumbent or ascending, cylindrical, much branched. Inflorescence is short, racemose, 1-4 cm long, with 6-25 flowers, dense, and almost no elongation at flowering stage. Corolla yellow, flowering from June to August, fruiting from July to September.

3, the main value is different

Alfalfa: It is famous for its high crude protein content. It contains more than 20 kinds of amino acids, including all essential amino acids for human beings and animals, and some rare amino acids, such as citrulline and concanavaline.

Alfalfa: It is rich in vitamins A, C, E and various amino acids, and its tender stem and leaf tips can be eaten as vegetables. High nutritional value and delicious taste.