细辛是马兜铃科的多年生草本植物,株高20—30厘米,地下根状茎着生很多不定根,地上生2片或数片心脏形的叶子,叶色深绿,脉纹清晰,5月上旬由叶腋间开出1—2朵紫红色小花,具有观赏价值。细辛属植物主要分布在北半球温带地区,全世界有70余种,我国约有30种。细辛是常用中药,全草入药具有解热、镇痛、抑菌、降血压和局部麻醉等功能。根据国家药典规定,中 Asarum Aristolochia is a perennial herb, plant height of 20-30 cm, underground rhizome with many adventitious roots, ground 2 or several pieces of heart-shaped leaves, dark green leaves, veins clear, 5 The early month by the leaf axillary out 1-2 purple flowers, with ornamental value. Asarum is mainly distributed in the temperate regions of the northern hemisphere, there are more than 70 species in the world, about 30 species in China. Asarum is commonly used traditional Chinese medicine, the whole plant into the medicine with antipyretic, analgesic, antibacterial, lowering blood pressure and local anesthesia and other functions. According to the provisions of the State Pharmacopoeia, China