Redwoods grow back into themselves as they expand into space, and this flying buttress is a limb shot out of that small trunk, going back into the main trunk and fusing with it.
セコイアの枝は成長しながら幹に戻る性質があります この飛梁は右にある細い幹から出た枝が 主幹に戻って一体化したものです