PEGGY GREB / US DEPARTMENT OF AGRICULTURE / SCIENCE PHOTO LIBRARY PEGGY GREB / US DEPARTMENT OF AGRICULTURE / SCIENCE PHOTO LIBRARY
Editorial use only.
Guayule plant research. Chemist inspecting 1-year-old greenhouse-grown guayule plants (Parthenium argentatum). Guayule is being studied and developed as a source of natural rubber and bioenergy. Photographed at the Agricultural Research Service's Western Regional Research Center, Albany, California, USA.
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