The flora composition is complex and geographical components are various, with a close relations to the flora on the same latitude and nearby islands area in composition, nature and generation.
在区系组成、性质和发生上与邻近同纬度大陆地区和相邻海岛地区联系密切；
Such data are basic information for further investigating the composition, characteristics, nature, origin and evolution of the Qinghai plateau flora.
是研究青海高原植物区系的组成、性质和特点以及发生和演变规律等方面问题的基础资料。
The study indicates that the Dagangshan has a typical subtropical flora and is characteristic of floristic transition from tropical to temperate composition.
大岗山植物区系是典型的亚热带植物区系，有由热带成分向温带成分过渡的特点，成为许多热带性属的分布北界。
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