Abstract: 　To elucidate the species composition and distribution of invasive plants in urban green spaces across Fujian Province, a comprehensive survey was conducted across 42 county built-up areas within nine urban areas. The study analyzed species composition, floristic characteristics, life forms, native origins, and the extent of invasion threats posed by these plants. The results revealed a total of 130 invasive plant species in Fujian Province, belonging to 38 families and 89 genera. The Asteraceae family had the highest number of species, with 31 species accounting for 23.85% of the total. Herbaceous plants dominated the life forms, with 117 species making up 90.00% of the total. The majority of invasive species originated from the Americas, with 97 species comprising 67.83% of the total. The invasive plants showed a significant tropical nature in terms of geographical components of families and genera. 32 species (24.62%) were classified as highly threatening, while 29 species (22.31%) posed moderate risks. The coastal cities of Fuzhou, Putian, Ningde, Quanzhou, Zhangzhou, and Xiamen harbored a total of 117 invasive species, while the inland cities of Nanping, Sanming, and Longyan contained 97 species, with a species similarity coefficient of 0.58 between the two regions.

Key words: invasive plants, urban green spaces, flora, life forms, distribution pattern