CURT MAAS / AGSTOCKUSA / SCIENCE PHOTO LIBRARY CURT MAAS / AGSTOCKUSA / SCIENCE PHOTO LIBRARY
Harvesting sunflower seeds. A combine harvester is cutting up the plants and unloading the seeds into a truck. The seeds of the sunflower (Helianthus annuus) are harvested for their oil and as a food. Photographed in North Dakota, USA.
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