When the heads open and rise up again, a great change is seen to have taken place.

当头状花序再次打开, 向上伸展时, 它们已经发生了巨化。

If you blow all of the seeds off in one breath, your wish will come true!

如果一口气出走头状花序，愿望就能成真！

Outside the large flower-head is a double row of small green leaves, which protected the tiny flowers within when the " head" was only a bud.

巨头状花序外面长有两排绿叶, 它们能够在“头状花序”只是蓓蕾时保护深藏其中花。

But if you pull one of these flower-heads to pieces, you will find that it is really made up of a great many small separate flowers, which all grow close together on the cushion-shaped top of the flower-stalk.

然而, 如果你将这样一个头状花序分解开来, 就会发现, 它其实由许多独立花构成, 它们全部生长在花茎垫状顶部, 彼此紧密依靠在一起。

In this way the little yellow flowers that form the head are kept safe and warm till finer weather comes.

这样一来, 构成头状花序黄色花就得到了保护并且能够获得温暖, 直到天气情况有所好转。

Yes, and it was quite an innovation because the arrowheads they were using before were made of dandelion heads.

是，这确实是一次重创新，因为他们之前使用箭头是由蒲公英头状花序制成。