黄芪,别名东北黄芪、绵芪。根部药用,有补气升阳,固表止汗,利水退肿,托疮排脓等功效。主治脾肺气虚及中气下陷之症。一、生物学特征黄芪为深根系植物,适应性强,耐寒、耐旱。易在阳光充足、地势高燥、土层深厚、肥沃疏松、排水良好的砂质壤土及石灰质壤 Astragalus, alias Astragalus, Mianqi. Root medicinal, qi Yang, solid table antiperspirant, water swelling, sore suppository and other effects. Indications spleen qi deficiency and subsidence of the disease. First, the biological characteristics Astragalus deep root plants, adaptability, cold, drought. Easy in sunny, high terrain, deep soil, fertile loose, well-drained sandy loam and lime texture