本区的禾本科植物绝大多数属于温寒地带分布类型，因而具有明显的高原高山植物区系的特征。
Great majority of grasses in this area is a dispersed type to temperate and cold zone. Showing the feature of highland and alpine flora is quite clear.
在区系成分中存在较多中国-喜马拉雅成分，表明了该区系具有明显的高原及高山植物区系的特色。
Owing to the elements in the flora are mainly of Sino-Himalayan ones, so the flora is obviously with plateau and alpine floristic features.
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