Abstract: Badagongshan Mountains is a national nature reserve in Central China. It is situated at 29° 30' -29° 50' N. latitude, 109° 42' -110° 10' E. longitude in Sangzhi county, north-western Hunan province. The total area of the mountain is about 250 km2. Its nature forest occur at about 1200 m to 1890 m elevation. The dominant elements in the forest are Fagus, Quercus, Cyclobalanopsis, Carpinus, Betula, Sassafras, Tilia, Acer, Padus, Davidia, Rhododendron, Sinanrundinaria etc. On the top of the mountains, Fagus lucida almost form pure forest.

Key words: Hunan Badagongshan

摘要： 湖南八大公山自然保护区是华中地区面积大且植物保存较完好的地点。土著种子植物计162科、709属、1775种。全部属按15个地理分布型进行分析，全部种按更细的分布型类别（中国特有分为10个亚型）进行分析。结果表明，本地热带分布的科属虽为数不少，但温带分布的科属更显优势，北温带科属比较集中，同时中国、东亚、及东亚一北美特有属也很集中。本山中国特有种计1120种，华中特有种为347种。植物区系的古老、残遗及特有性突出，可视为中国（华中）有典型代表性的山地。

关键词: 湖南八大公山, 植物区系, 植物地理学, 植被