Why Do Tumbleweeds Tumble?

The iconic prop of classic Westerns is a plant on a mission. And it doesn't come from the West at all.

Kali tragus - Wikipedia

Pen in Hand: Drifting along with the tumbling tumbleweeds, Lifestyle

VIDEO: Tumble Weed Terror

Tumbleweed, Tier Zoo Wiki

Why Do Tumbleweeds Tumble?

Ask Clay: What are tumbleweeds before they are tumbleweeds?

Russian Thistle, Tumbleweed - Eat The Weeds and other things, too

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

Everything You Ever Wanted to Know About Tumbleweeds

Tumbleweed, Deserts, Invasive Species, Wind Dispersal

Tumbleweeds - National Geographic Magazine