perfoliate

adj.茎贯穿叶而生长的,贯穿性的

有小孔（叶）的；有洞的

形容词

1、The leaves are simple and perfoliate, and the stem pulverulent.

叶子是简单和有小孔的，茎则是粉状的。
2、The perfoliate ovate leaves have an acute apex and rounded or cuneate base.

有尖形尖顶部和圆形或楔形底部的具有小孔的卵形叶子。