It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
This image was acquired from
Keywords from Image Description:
sunflower sun summer yellow nature flower field sunflower field agriculture sunlight sky plant rural vibrant floral sunny outdoor sunset sunshine light color season horizontal natural farm leaf cultivated growth fresh head garden bright environment green gardening day sunny day electric energy
Page 2017 Free-images.com. All images are Public Domain