在总结桂花栽培品种分类的基础上,根据桂花的开花季节、花色、花期、子房发育状况（能否结实）及营养器官等性状,既考虑品种进化关系和传统分类方法,又密切结合生产实际的需要,提出了桂花品种分类的五级标准。并对木犀属的地理分布和种质资源的利用进行了讨论。

Based on generalization and summazation to the cultivar classification of Osmanthus frugruns Lour. , this paper provided the classification standard at five levels according to its blooming season, flower colors, flowering period, developing ovary in flowers (whether bear fruit or not), vegetative organ etc. This standard either embody the evolution relationship on the cultivars of O. fragrans or closely meet the need of production. In addition, the author analysed the geographical distribution of germplasm resources of Osmanthus and suggested their further development and utilization.