First , poppy stems are cut down with sticks .

首先，用棍子打断茎。

Some species use one method in their leaves and the other in their stems .

一些物种在叶子用其中一种方式，而在茎部用另一种。

Flowers , leaves and stems grow above ground .

花，叶和茎长在地上。

Note how sculptural , curved calla lily stems form a stylish bed for a single succulent .

这款插花最需注意的是雕塑的方法，弯曲马蹄莲的茎好像为肉质植物形成一个的时尚温床。

Experts have confirmed that the fossilised plants are liverworts , a simple species which has no roots or stems .

在这里输入译文专家已经证实这些植物化石是一种没有根和茎的原始苔类。