Maps show spatial richness patterns of vascular plants on Qinghai-Tibetan Plateau. HR, richness of herbaceous plants; WR, richness of woody plants; SR, richness of species; GR, richness of genus; FR, richness of family; WP, proportion of woody plants in all vascular plants. Photos are all taken by Ling-Feng MAO on Qinghai-Tibetan Plateau. See MAO et al., pp. 371–381 in this issue.