There were Iva xanthifolia Nutt,Ambrosia artemisiifolia L.,Ambrosia trifida L.of invasive species and Cosmos bipinnata Cav of noninvasive species from temperate zone.

• 所选择的植物包括:取种于温带的入侵植物假苍耳(Iva xanthifolia Nutt)、豚草(Ambrosia artemisiifolia L.；) 、三裂叶豚草(Ambrosia trifida L