Tumbleweed | take a walk-and-go trip

If you are in the sandy western United States, you must be dumbfounded by the sight of a lot of spherical withered grass spinning and jumping in the direction of the wind, like a huge ball. You don't know what's going on, and you don't know where they're going. In fact, this is a common plant in the Gobi-rolling grass, commonly known as "tramp".

Wind rolling grass is a common plant of Chenopodiaceae, and the well-known Haloxylon ammodendron is its relative. The most important feature of tumblegrass is its tenacious ability to be at home all over the world. once it is short of water, strong wind and dry environment, it will not hesitate to put away its roots, roll into a ball, and keep "running" with the wind. It won't take root on the spot and start a new life until it meets the water again. Rolling grass also has a strong ability to reproduce. Every late autumn, when the seeds are mature, the unique "running migration" of rolling grass provides a lot of convenience for the spread of seeds. The spherical appearance tumbles and bounces with the wind, which makes the rolling grass as efficient as a seeder. It will sow seeds wherever it rolls, and when Rain Water comes, it will begin to take root, sprout and grow new rolling grass.

Rolling grass can grow very big, some can even compete with cars, coupled with its tenacious vitality, can bring a lot of trouble to human beings. Unless stopped, the accumulated wind rolling grass will block the river and block under the bridge.

In Wangala Tower, northeastern Victoria, Australia, houses are blocked by growing tumbleweeds, and local residents spend hours a day cleaning up and complaining. Come to think of it, how annoying it is for prickly, rough balls of hay to run everywhere, so the USDA has launched a plan to eradicate tumbleweeds, extracting viruses that can infect tumbleweeds, hoping to control these crazy "tramps."

Even though the rolling grass is so troublesome, the "struggle" against the rolling grass is still going on, but we still hope to find a way to control it rather than exterminate it. After all, the tenacious wind rolling grass conveys to us the courage not to admit defeat, and the appearance of rolling with the wind is not interesting, isn't it?