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.

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

Great Falls neighborhood overwhelmed by tumbleweeds

Tumble Weeds Handpicked Tumbleweed Western Decor Dried Flowers

Tumbleweeds Are a Surprising Problem for the Planet—Here's Why - Brightly

Tumbling tumbleweed

4,330 Tumble Weed Stock Photos, High-Res Pictures, and Images - Getty Images

Tumbleweed - Wikipedia

tumbleweeds tumble to spread their seed. #farming101 #owyheeproduce

Tumble weeds before they tumble. : r/mildlyinteresting

The Tumbleweed

Tumble weeds hi-res stock photography and images - Alamy