The alien plant species in Guangzhou,China

One hundred and twenty seven alien plant species of Guangzhou were reported in this paper,their growth forms,origin areas,status,habitats and changes in different seasons were analyzed.The results showed that alien plant species with strong reproductive ability such as herbs,shrubs,climbers were more invasive,especially those from America and Africa.Areas that were easier to be invaded always were those heavily interrupted or destroyed ecosystems,such as roadsides,pools and gardens.Further discussions suggested that the invasive species and easy-invaded areas were actually the two different sides of the same coin.Invasive species and invaded areas are related and interplayed.