花か紋もん板ばん

noun

rosette; ornamental flower-shaped plaque

Refers to a decorative, often flower-shaped, carved or applied ornament used in traditional Japanese architecture, especially on transoms (ranma) and other wooden elements.

• この欄らん間まには精せい巧こうな花か紋もん板ばんがはめ込こまれている。

  An exquisite rosette is set into this transom.