Grey Meadow, the Industrial Hub

Unfortunately, I cannot fix the problem with the floating trees. Apparently, the trees are part of the cemetery lot, but I cannot grab and delete them since they are not within the physical confinements of the lot itself. The only way I was successfully able to delete these trees was to delete the lot entirely. The shift-click delete technique works on everything except plants and trees. I also attempted radius purge, but that would not work since these plants are either floating or sinking into the ground. Any ideas?