Neagari style bonsai are those which have been grown in a harsh environment and the roots branching off under the earth have become exposed on the surface of the topsoil due to the effects of wind and rain.
厳しい生育環境により、地中で分岐した根元の部分が、風雨に晒されて表土から浮き出して露出している状態を根上りと呼ぶ。