Tumbleweed, Deserts, Invasive Species, Wind Dispersal

Tumbleweed, plant that breaks away from its roots and is driven about by the wind as a light rolling mass, scattering seeds as it goes. Examples include pigweed (Amaranth retroflexus, a widespread weed in the western United States) and other amaranths, tumbling mustard, Russian thistle, the steppe

Russian Thistle-Goosefoot Family

Russian tumbleweed – Invasive Species South Africa

Weed dispersal hi-res stock photography and images - Alamy

10 desert plants - meet the species that thrive in extreme conditions - Discover Wildlife

Sahara Mustards: Why I Weed The Desert, And Why You Should Help Me. – Jan Emming

What is with Tumbleweeds Tumbling?

Weeds GarryRogers Nature Conservation

Blame Russia For The Trouble With Tumbleweeds

Tumbleweed: Most Up-to-Date Encyclopedia, News & Reviews

Tumbleweed: Most Up-to-Date Encyclopedia, News & Reviews

Tumble weeds hi-res stock photography and images - Alamy

Wind Dispersal Of Seeds

Dispersal Of Seeds Royalty-Free Images, Stock Photos & Pictures

Centaurea diffusa (diffuse knapweed)