在西双版纳282科近5 000种高等植物中,有外来植物153科1 127种,其中药用、花卉和可食用种类分别占39.0%、33.9%和20.3%。外来植物集中分布在植物园和当地居民的庭院中,并沿道路向外扩散。外来植物丰富了西双版纳的物种多样性,促进了地方经济发展,但少数杂草类入侵物种的生态危害很明显。 

Of  the 282 families and near 5 000 species of high plants recorded in Xishuangbanna, 153 families and 1 127 speciesarealiens plants. The alien plants, of which medicine, flower and edible plants accounted for 39.0%, 33.9% and 20.3% respectively distributed assembly in botanical gardens and indigenous home-gardens with a tendency dispersing along various roads and paths. The alien plants increased plant biodiversity and benefited the local society and economy but some of ruderal species resulted inevident ecological impacts. It was emphasized that more attentions should pay to the dispersal of alien plants assisted by human activities and the ecological roles of alien plants in ecosystems.