Geographic distribution of Xinjiang seed plant diversity patterns and hotspots and major mountains ranges in northwest China. a Geographic distribution of species richness b geographic distribution of phylogenetic diversity c major mountains ranges d diversity hotspots identified by species richness e diversity hotspots identified by phylogenetic diversity and f diversity hotspots identified by both species richness and phylogenetic diversity. Albers projection. Hotspot centre codes are consistent with those listed in Table 3.