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What is alfalfa?
1. Purple alfalfa, also known as clover, grass head and alfalfa, belongs to Leguminosae and alfalfa. Perennial herb, much branched, 30- 100 cm high. Leaves with 3 leaflets; Leaflets obovate or oblanceolate, length 1-2 cm, width 0.5 cm, rounded apex, slightly protruding middle rib, serrated upper leaf margin, white villous on both sides; Petiole is about 1 mm long and hairy; Stipules lanceolate, apex pointed, pilose, about 5 mm long. Racemes axillary; Calyx pilose, calyx teeth narrowly lanceolate, acute; Corolla purple, longer than calyx. The pod is spiral, with sparse hair, a beak at the top and several seeds; Seeds kidney-shaped, yellow-brown.

2. Native to Turkey, Armenia, Iran, Azerbaijan and other places. Widely cultivated in Eurasia and other countries in the world. All parts of China are cultivated or semi-wild. Born in fields, roadsides, wilderness, grasslands, river banks and valleys.

3. Alfalfa has medicinal value and contains many effective components, which can reduce cholesterol and blood lipid content, eliminate atherosclerotic plaque, preserve immunity, and resist oxidation and aging; You can also make pasture. At the same time, it also has edible value and ecological value, and has strong regeneration ability. In fact, it is an excellent soil and water conservation plant in mountainous areas.