The geological characteristics of the wild vines show that Pantropic are dominant,accounted for 22.4% of all wild vines,followed by the North Temperate(22.4%),East Asia(19.4%) and Asia & North America dijuncted(13.4%).

• 区系成分分析表明；热带成分居首位(22.；4%25)；其次是东亚成分(19