1. Department of Soil and Water Systems, University of Idaho, Moscow, ID 83844, USA
2. Department of Applied Ecology, North Carolina State University, Raleigh, NC 27695, USA
3. The Biomimicry Center, Arizona State University, Tempe, AZ 85287, USA
4. Department of Biology, Mary Baldwin University, Staunton, VA 24401, USA
5. School of Life Sciences, Arizona State University, Tempe, AZ 85287, USA
6. Bayer Crop Science Division, Saint Louis, MO 63146, USA
7. Natural History Museum, University of Copenhagen, DK-2100 Copenhagen, Denmark
8. Department of Organismic and Evolutionary Biology, Harvard University Herbaria, Cambridge, MA 02138, USA