“山中相送罢,日暮掩柴扉。明年春草绿,王孙归不归?”这是唐代诗人王维的《送别》诗,诗中的“王孙”并非指人,而是一味古老的中药的别名,这味古老的中药便是明朝李时珍所著的《本草纲目》中所说的“补药之长—黄芪”。黄芪,亦名戴糁、戴椹、百本等。相传古时有一位善良的老人,姓戴名糁,善针灸术,为人厚道,待 “This is the Tang Dynasty poet Wang Wei’s” farewell “poem, the poem ” Wang Sun “is not referring to people, but blindly The ancient Chinese medicine alias, which means the ancient Chinese medicine is the Ming Dynasty Li Shizhen ”Compendium of Materia Medica“ said ”long tonic - Astragalus." Astragalus, also known as Dai 糁, Dai 椹, one hundred and so on. According to legend, there is a good old man in the ancient times, surnamed Dai name 善, good acupuncture, man kind, to be