The chunky part of kohlrabi is also a stem, and its much larger leaves have spiral phyllotaxy as well.

大头菜粗大的部分也，它的大得多的叶子也有螺旋叶状。

Stems provide the structural framework of the plant, whether dainty daisy stems or thick tree trunks — yes, tree trunks are stems!

提供了植物的架，无论娇嫩的雏菊还粗壮的树干——的，树干就！

Structural parts of plants, such as woody stems no longer actively growing, may have much less water than growing tissues.

植物的部分，如不再积极生长的木本，可能比生长组织含有更少的水分。

As I carefully brush the backs of my fingers against moss beds, tiny stalk-like beings tickle me. Jutting out of moss leaves, these stalks are known as sporophytes; each sporophyte contains a capsule of spores at its outermost end.

当我小心翼翼地用手指背面扫过苔藓时，细小的状会挠得我发痒。这些从苔藓叶中探出来，被称为孢子体，每个孢子体的末端有一个孢子囊。