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.
As sequoias crescem para dentro  à medida que se expandem no espaço e este arcobotante é um ramo saído daquele tronco mais pequeno, entrando no tronco principal  e fundindo-se nele.