Solidago Canadensis L as an invasion species were pervaded rapidly in recent years in Anhui Province.It was easy to become simplex community if without control,so biodiversities were reduced.

• 入侵生物加拿大一枝黄花近几年在安徽省迅速扩散蔓延,如果不加以控制,加拿大一枝黄花极易形成单一群落,严重破坏生物多样性。