串叶松香草(Silphium perfoliatum L.)是一种新的饲料作物,属于菊科。原产于北美的高草草原,在那儿温暖湿润的气候条件下它长得很高。18世纪引入欧州,20世纪中期在植物园里仅做为展览品。50年代苏联开始研究这种植物,20年来它得到一些研究人员的好评。目前苏联各地在不同土壤和气候条件下进行播种试验。试验表明串叶松香草 Silphium perfoliatum L. is a new forage crop belonging to Asteraceae family. Native to North America’s high grasslands, where it grows tall in warm, humid climates. Introduced into the eighteenth century, the mid-20th century in the Botanical Garden only as an exhibit. The Soviet Union began to study the plant in the 1950s and for 20 years it has been well received by some researchers. At present, the Soviet Union has conducted sowing experiments under different soil and climatic conditions. Trials showed that Slash leaf herb