It falls to the ground and the wind blows it.

It's a summer annual that produces a conspicuous prickly 'cocklebur' and ranges from 1/2 to 6 1/2 feet in height. Common cocklebur is found throughout the United States and is primarily a weed of agronomic and horticultural crops, nurseries, and occasionally pastures.

Cocklebur

Genus: Xanthium (there are a variety of species) of the family Asteraceae, which are angiosperms.

It looks like a porcupine and looks spiky! ~ anonymous~ llol