Bonsai are potted miniature trees which are carefully styled to achieve an aesthetic effect. The concept was first imported into Japan from China more than a thousand years ago. Since then, a distinctive style of this art form has been developed in Japan. Various techniques such as the trimming of roots and wiring are used to keep the trees small but in proportion to how they might have looked if grown in nature. This achieves the effect of condensing the appearance of a natural tree or forest within the pot, leaving room for artistic imagination. See "Bonsai". japan-guide.com. Retrieved 2014-12-12.