Current framework of rosid phylogeny is displayed as a big tree with sturdy trunk and wide-spreading branches. A series of snapshots of flowers or fruits are displayed on the top of each clade, reflecting their morphological characters and economic importance. Different colors represent 17 orders of Rosidae. The super-ordinal relationships within Rosidae are outlined, sketching out a basic structure of the tree trunk (please see Sun et al., pp. 363–391 in this issue). This cover image shapes like a fan in Chinese painting, attempting to reflect that this special issue is a major regional effort toward the whole tree of life project.ge shapes like a fan in Chinese painting, attempting to reflect that this special issue is a major regional effort toward the whole tree of life project. [Detail] ...