The exposed rootage, the nebari, has a profound impact on the kind of image created. Ideal roots are star-shaped when seen from the top, but longer towards the sides than towards the front and back. They must be tapered and proportional in thickness to the trunk base.

Together with the surface rootage, the lower trunk or tachiagiri, are the most important elements in determining the front of the tree.  The tree should be assessed from all sides and all angles until this is found.The most interesting trunk line in the given material should then be discovered considering movement, taper and the availability of suitable branches on the lower trunk and back.