The dynamic variation of the contents of flavonoid and cholorogenic acid in the leaf of Acer truncatum were studied.

• 通过对不同月份元宝枫叶产量和叶内黄酮、绿原酸含量的动态研究表明:元宝枫叶内黄酮的含量以8月份最高,含量达5 73%25;