New phylotaxonomy of grasses, includes 12 subfamilies (Anomochlooideae, Pharoideae, and Puelioideae forming the basal lineages; Oryzoideae, Bambusoideae, and Pooideae forming the BOP clade; and Aristidoideae, Panicoideae, Arundinoideae, Micraioideae, Danthonioideae, and Chloridoideae forming the PACMAD clade), 51 tribes, and 80 subtribes evolving clockwise. Triangles are proportional in height to the size of the taxon. See Soreng et al., pp. 117–137 in this issue.