RUSSELL GRAVES / AGSTOCKUSA / SCIENCE PHOTO LIBRARY RUSSELL GRAVES / AGSTOCKUSA / SCIENCE PHOTO LIBRARY
Devil's claw (Proboscidea althaeifolia). This weed is a particular nuisance in cotton fields. It has long and hooked seed pods which attach themselves to passing animals. As the animals walk, the pods are crushed and the seeds disperse. Photographed in Childress, Texas, USA.
Model release not required. Property release not required.