Why do tumbleweeds tumble?

Tumbleweeds might be the iconic props of classic Westerns. But in real life, they’re not only a noxious weed, but one that moves around.

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Tumbleweeds - National Geographic Magazine

Tumbleweeds

What Makes Tumbleweeds Tumble?

Chasing Down the History of the Tumbleweed - Garden Collage Magazine

Everything You Need to Know About Tumbleweeds

Strong Wind Keeps The Tumble Weeds A Rollin In Great Falls

Tumbleweeds: the fastest plant invasion in the USA's history

Tumbleweed - Wikipedia

Unruly Tumbleweeds Kick Up a Storm of Trouble in Southwest - WSJ