Where to report incorrect title/description on stock image?

How do I report stock images with incorrect titles or tags? I use a lot of stock photos of plants and animals and I search by specific species. In the process, I often find carelessly described photos with the wrong species name in the title. Example included (obviously not an oak of any kind, it's an alder or other Betulaceae species) but this isn't limited to one image, it's a widespread and recurring problem when browsing stock nature photography. There is no option for "incorrect title" or "incorrect description" in the flag button menu, so I don't know where or how to report these issues so they can be corrected. 

It's frustrating to be looking for something specific and see a bunch of unrelated content in the search results, and it concerns me that users who are unable to identify these plants or animals at a glance may unknowingly use a misidentified image in their content.