If you are in the database and viewing an image and you want to reference that image in a thread somewhere, historically, you would link to it by copying the address into your post, like this:
Starting now, at the photo page, under the caption and license information, it shows an "ATP BB Code". Just copy and paste that BB code into your forum thread and it'll appear like below:
That bb code will add all the details like the name of the plant and the thumbnail links directly into the database. This works anywhere BB Code is enabled on the site (blogs, forums, ideas, etc.)