Tire makers race to turn dandelions into rubber
...
Global tire makers such as industry leader Bridgestone Corp and No.4 player Continental AG believe they are in for rich pickings and are backing such research to the tune of millions of dollars.
Early signs are good. A small-scale trial by a U.S. research team found the dandelions delivered per-hectare rubber yields on a par with the best rubber-tree plantations in tropical Asia.
So within a decade, rather than being a backyard bane like their wild cousins, the new flowers might be seen in neat rows in hundreds of thousands of acres across Europe and the United States, where they can grow even in poor soil.
And they could have some interesting modifications. For instance, German researchers have bred the plants to grow to up to a foot (30 cm) in height, dwarfing many of their backyard cousins. They are also developing the dandelions with upright rather than flat-growing leaves - just so harvesting machines have something to grab on to.
http://www.reuters.com/article/2014/08/20/us-dandelion-rubber-idUSKBN0GK0LN20140820