首次从优毛铁棒锤Aconilumflavum地上部分（花、茎、叶）中分离出4个生物碱结晶。经鉴定晶Ⅰ为脱氧乌头碱（deoxyaconitine），晶Ⅱ为3-乙酰乌头碱（3－acetylaconitine），晶Ⅲ为乌头碱（aconitine），晶Ⅳ待鉴定。乌头碱的收率为0．12％（块根中乌头碱收率为0．20％），薄层层析鉴定地上部分与块根的生物碱基本一致，为开发3-乙酰乌头碱寻找了新的资源。

Four alkaloids were isolated from the flower,stem and leaf of Aco,ritum jlavum Hand-Mazz. for the first time. Three of them were identified as deoxyaconitine,3-acetylaconitine and aconitine respectively by physico-chemical constants and spectroscopic analysis. The other one needs to be identified. The yield of aconitine is 0.12％(aconitine of root is 0.20％). By TLC, alkaloids present in the flower , stem and leaf are same as that found in the root. Therefore，the aerial parts of the plant may be exploited as a new source of 3-acetyla-conitine.