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板兰根属于十字花科植物菘蓝的干燥根，水浸后容易烂根。一般土壤均可种植，它分为南板兰根和北板兰根，叶俗称大青叶。根、叶均可入药，由于北板兰根所含氨基酸量大，而这些氨基酸对于促进病人肝脏的修补和恢复疗效显著，因此倍受中成药厂的欢迎。从积温上看，它主要分布在暖
Banlangen belongs to the cruciferous plant dry blue root, easy to rot roots after flooding. The general soil can be planted, it is divided into South and South Langenan Lan, leaves commonly known as Folium. Roots, leaves can be used as medicine, due to the large amount of amino acids contained in the northern Banlangen, and these amino acids for the promotion of the patient’s liver repair and recovery of significant effect, so much the Chinese pharmaceutical companies welcome. From the accumulated temperature point of view, it is mainly distributed in the warm