1. Pennycress

Pennycress is a weed that can be grown as a biofuel crop.

Photographer Karen Phillips describes Pennycress as a “cool little Brassica” that can grow in nickel-contaminated soil that would kill most plants. A pennycress biofuel facility is in the works for Peoria, Illinois, and upstate New Yorkers are also looking into the weed, more colorfully known by the locals as “stinkweed.”

Image: karenphillips on flickr.com.