中国帕米尔高原座落于新疆西南部,北纬37°39°,东经73°76°,面积约30000km2,区内平均海拔约4000m,有种子植物963种(包括变种),分属于59科303属,其中裸子植物3科3属12种,被子植物56科300属951种。种子植物科的区系特征为:1)单种及单属科所占比例极高,中小科分化强烈,区系组成复杂;2)禾本科、菊科、豆科、十字花科为本区优势科,且优势明显;3)植物区系具有明显的过渡性,且以北温带为主的温带成分占主导地位,有极其微弱的热带成分渗入。
The Pamirs, a land about 30000km2 and about
4000m above sea level, is located in the southwest of Xinjiang, between
37°~39°N and 73°~76°E.There are 963 species of seed plants which are
blong to 59 families and 303 genera in this area.Gymnosperm have 3
families 3 genera 12 species, Angiosperm have 56 families, 300 genera,
951 species.From the level of families, the floristic characteristics
are summarized as follows:1) The ratioes of single-species and
single-genera family are very high, the polarization of Middle or
Minor-species family is intensitive, composition of floristic is
complex;2) Dominant families include Gramineae, Compositae, Leguminosae
and Cruciferae, phenomenon of the floristic is obvious;3) The temperate
composition which is mainly north temperate is dominant in the flora of
Pamirs, tropical composition being feeble.