Informal upright: movement with a readable apex
Moyogi uses a curved or changing trunk line, with the apex returning over the base. Each change of direction should have a purpose and the branches should help reveal the trunk rather than hide every turn. Repeated identical S-curves tend to feel designed by formula; asymmetry and varied distances between bends create a more plausible rhythm.
Cascade: a tree that descends
In kengai, the trunk passes below the pot’s rim and the foliage mass continues downward. The container and display height are part of the composition because the cascade needs visual space. The top should not become a disconnected tuft, and the descending line needs taper, direction and believable transitions.
Let the material set the ambition
A cascade requires a species and branch structure able to tolerate the required bends, plus a stable container and careful aftercare. Do not bend brittle or weak material to satisfy a style diagram. A semi-cascade, a modest leaning design or a future plan may be more appropriate than forcing a dramatic drop in one session.
Further reading
Virginia Tech Extension and the National Bonsai Foundation outline these traditional forms; their descriptions are starting points, not species-specific training prescriptions.
Historical archive record