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

Tumbleweed - Wikipedia

Why seed dispersal help the plant? - Quora

Seed dispersal — In Defense of Plants

Wind Dispersal Of Seeds

Brassica tournefortii (African mustard)

Activity, Dust storms, tumbleweeds and traveling seeds!

Tumbleweed (not native)

Activity, Dust storms, tumbleweeds and traveling seeds!

in terminal velocity per species explained by individual seed weights

Sahara Mustard - Brassica tournefortii