simple leaf meaning in English

【植物；植物学】单叶。

2 comparative study on morphology in the light of the form of the materials , hup shows more approximate relationship with gri : they are 50 ~ 70cm high at the period of fructescence ; both are perennials and reproduce themselves by root stock , and especially , hup can also reproduce itself by branch roots and buds growing from stipes when the stems fall againt the ground , and then those buds develop into new bodies ; while gri can reproduce itself not only by vegetative propagation but by seeds . both of hup and gri characterize with bigger leaf blade and with the approximate form of simple leaf , with root stock , and with two - line seeds in one fruit
2形态学比较从形态上来看，新种hup与分布海拔高度相近的gri比较接近:植株体高大，果期株高50一7ocm ;都为多年生，能以其根状茎繁殖，但前者还以较为特殊的营养体繁殖后代，即倒伏后每个茎节上长出新的根和芽，发育成独立的新植株，后者既能以营养体繁殖，又可通过种子繁殖;具有较大的叶片且单叶形态相近，果实内有二行种子(其它种为一行) . 。