茎圆筒形, 由叶片包裹而成.用英语怎么说？

茎圆筒形, 由叶片包裹而成.

Cauline cylinder form, be lapped by blade and become.

cauline

adj. 茎的，茎生的；

例句
Base foliation is fascicular, cauline foliation each other is unripe, feather crack.
基生叶丛生,茎生叶互生, 羽裂.

cylinder

n. 圆筒，圆柱，汽缸，（尤指用作容器的）圆筒状物；

例句
...a cylinder of foam...
泡沫橡胶圆柱体

form

n. 形状，形式，外形，方式，表

例句
A household radiator absorbs energy in the form of electric current and releases it in the form of heat.
家用取暖器吸收电流能量，再以热量的形式释放出来。

be

v. 是，有，存在，做，成为，发生；aux. 用来表示某人或某物即主语本身，用来表示某人或某物属于某一群体或有某种性质；

例句
The older child should be able to prepare a simple meal...
那个年纪稍大的孩子应当会做一顿简单的饭菜。

lapped

搭接的，重叠的；

例句
...the water that lapped against the pillars of the boathouse...
轻拍着船屋支柱的海水

by

prep. 在…旁边，表示方式，由于，经过；adv. 经过，表示保留或保存时用，短暂拜访；

例句
...expensive make-up that we saw being advertised by a beautiful model...
我们所见的由一位漂亮模特代言的昂贵化妆品

blade

n. 刀片，剑，（壳、草等的）叶片，桨叶，浮华少年；

例句
Cannibal killer Jeffrey Dahmer has been caught trying to hide a razor blade in his cell.
食人杀手杰弗里·达默被抓到试图将一片剃须刀片藏在牢房里。

and

conj. 和，与，而且，于是，然后，因此；

例句
I spend a lot on expensive jewelry and clothing...
我花很多钱购买昂贵的首饰和衣服。

become

vi. 变为，成为，变得，变成；vt. 适合，适宜，相称，相当，变成，发生；

例句
...abandoned buildings that become a breeding ground for crime.
沦为了犯罪温床的弃置楼群