How is the song of dandelion sung? Is it a nursery rhyme?

Yes, the lyrics of dandelion:

A breeze is blowing.

Dandelion fly

Like a small umbrella.

Chase slowly against the wind

Fly over the green of Shan Ye.

Fly over a gurgling stream

It is so beautiful to fly to the early morning.

Flying over the starry sky is beautiful.

Fly, fly, fly gently.

Embrace the earth and snuggle up to each other

Dandelion fell asleep gently.

Next summer

See you next summer.