Abstract: 69 species of invasive plants belonging to 53 genera and 20 families are identified and recorded in Guilin based on investigation and referring to the related literatures. Among them, Compositae is the most consisting of 21 species, and Gramineae and Amaranthaceae are the second comprising respectively 9 species. Some of them are quarantined weed in China, such as Xanthium italicum and Sorghum halepense. Their origins, habitats, invasive approaches as well as damage degree are also investigated and analyzed. Some suggestions for preventing and controlling the alien plant invasion in Guilin are also discussed.

Key words: Guilin city, alien invasive plant, invasive approach, damage degree, control suggestion

摘要： 通过野外调查,并查阅相关文献资料,确定桂林市外来入侵植物69种,隶属22科53属。其中,菊科植物最多,有21种;禾本科、苋科次之,各9种。有的已被列为我国检疫性杂草,如意大利苍耳和假高粱等。此外,对这些外来入侵植物的原产地、生境类型、入侵途径及危害程度进行分析,并提出其防控建议。

关键词: 桂林市, 外来入侵植物, 传入途径, 危害, 防控建议