Eth a nol extractions of leaves and stalks of this plant were allowed to react with co lor developer such as Mg(Zn) powder and HCl, 1% FeCl 3 ethanol, 2% AlCl 3 et hanol and 1% NaOH. Characteristic color of favonoids was then observed.

• 其茎叶乙醇提取物用Mg +HCl,Zn +HCl,1 %25FeCl3 乙醇液 ,2 %25AlCl3 乙醇液 ,1 %25NaOH进行显色反应 ,呈现黄酮类化合物性质特征颜色。