Abstract:In Wolong Nature Reserve, there are 1 648 species and 81 varieties of seed plants belonging to 658 genera and 144 families. Thirty-three species represent 17 genera and 8 families of gymnosperms. The flora of Wolong is old and rich in oligotypic families and genera (58.97%). The flora is composed mainly of the families (> 20 species) and the genera (>10 species) which amount to 14.58% of the total families and 4.25% of the total genera, respectively. It is characterized by tropical origin and temperate.