About 125 genera and 4000 species: widely distributed in temperate and subarctic regions, also at high elevations in tropical regions; 22 genera and 826 species (524 endemic) in China.

• 大约125属和4000种：广泛分布于温带和近北极地区，热带高海拔地区也有分布；中国有22属和826种(524种特有)。