常见例句Stems 4-angled or nearly 4-angled when young; internodes glabrous; interpetiolar stipules triangular, ligulate or ocreate. 近四棱形的茎四棱形或幼时；节间无毛；叶柄间的托叶三角形，舌状或者具托叶鞘。(2 返回 ocreate