This tire is made out of dandelions
Kok-saghyz, means “the root that can be chewed.” At least it does to a Russian. It’s first cousin to our own dandelion – a little larger, a bit coarser. And good rubber can be extracted from it.

In 1942 two planes landed in America with cargoes of kok-saghyz seeds. A total of 575 acres was planted, the dandelions harvested, the rubber produced. (read more, download PDF)