调查分析表明，九连山的植物区系起源古老；外貌和成分具有亚热带常绿阔叶林的特征；结构明显分为乔木层、灌木层和草本层；南方红豆杉种群的目前优势将逐渐被其它种群所取代。 The investigation and analysis showed that the flora of Jiulian Mountain is ancient in origin; its appearance and composition have the characteristics of subtropical evergreen broad-leaved forest; the structure is obviously divided into arbors, shrubs and herbs; the present advantage of the populations of Taxus chinensis will gradually be Other populations replaced.