3. Kudzu

Kudzu is a week that could become a biofuel crop.

Biofuel could be the redemption song for kudzu, the voracious creeper known as “the plant that ate the south.”Aside from absorbing trees and bushes into an eerie green moonscape, kudzu boasts a hi-carb content that could be converted to ethanol using a yeast-based process. To offset the expense of harvesting kudzu from the steep hillsides that it favors, researchers point out that there are no costs for fertilizing, irrigating, or planting the invader, which was imported to the U.S. from Asia in the 1870’s.

Image: Alabama kudzu by Alarob on flickr.com.