Floristic Study of the Rare and Endangered Plants in Jiuding Mountain Nature Reserve

There are about 25 species of rare and endangered plants in the Jiuding Mountain Nature Reserve. 32.5% of all the rare and endangered plant species in Sichuan Province and 6.6% of such taxa in China. According to current classification criteria, there are 2 endangered species, 10 vulnerable species and 13 rare species in the reserve, 2 species have been categorized as first-level protected species, 12 as second-level protected species and 11 as third-level protected species. The Jiuding Mountain Nature Reserve constitutes an important reservoir of rare and endangered plants in Sichuan Province. The rare and endangered plant species are relatively original; notably possess a temperate nature; their Chinese endemic elements are notable and have a strong relationship with those in Central China and Qinghai-Xizang Highland.