Figure 4From: Phylogeny of Salix subgenus Salix s.l. (Salicaceae): delimitation, biogeography, and reticulate evolution Relaxed molecular-clock chronogram based on combined plastid sequence data. Nodes used for calibration (A and B) are marked with black squares (see text for details). The main clades of Salix are numbered (1–8), and their estimated ages (with 95% HPD intervals in square brackets) are shown to the right of each node.Back to article page