Minimum spanning tree of the binary pulsar population defined as T(218, 217) based on the complete, undirected, and weighted graph G(218, 23 653) computed from the Euclidean distance among ten scaled variables (or the equivalent four PCs that describe their whole variance). Each node in the MST represents a pulsar. The MST separately notes confirmed BWs (red), RBs (green), and tMSPs J1023+0038 and J1227−4853 (yellow), respectively. Also, the BWs and RBs in globular clusters (light red and light green, respectively) are highlighted. The RBs J1622−0315 (green) and the RB candidate J1302−3258 (light teal) are also noted in the rightmost branch of the MST. The unclassified ones appear in blue. See Table A.1 for more details.