陕西豆科牧草资源丰富，共有３６属１０７种，主要分布于秦岭和陕北黄土高原带。区系成分多样，温带成分４９种，占４５．８％；热带成分２０种，占１８．７％；东亚—北美洲际成分１６种，占１４．９％；地中海—西亚—中亚成分４种，占３．８％，世界成分１６种，占１４．９％；东亚成分２种，占１．９％；因此，温带成分在陕西豆科牧草区系中占优势。 Legume forage in Shaanxi is rich in resources, with a total of 36 genera and 107 species, mainly distributed in the Qinling Mountains and the Loess Plateau in northern Shaanxi. There are 49 species of temperate elements, accounting for 45.8% of the total, with 20 species of tropical species accounting for 18.7%, 16 species of East Asia-North America, accounting for 14.9%, and 4 species of Mediterranean-West Asia-Central Asia , Accounting for 3.8%, 16 species of the world, accounting for 14.9%; two species of East Asia, accounting for 1.9%; therefore, the temperate component dominated leguminosae in Shaanxi Province.