Two-color composite images of six example large-scale filaments. In all panels, red shows integrated ¹³CO(2−1) emission in a linear scale, and cyan represents MIPSGAL mid-infrared 24 μm emission (Carey et al. 2009) in a logarithmic scale. The top three panels show filaments identified from SEDIGISM leaves with the MST approach (M7, M45, and M51, respectively). The color-coded circles denote leaves in filaments with different velocities and the white line segments are the edges. The color bars show the radial velocities of the leaves. The bottom three panels show large elongated filaments selected from the SEDIGISM cloud catalog (S62, S63, and S69, respectively). White curves are their medial axis. Two-color composite images for all the 88 filaments are shown in Appendix E.