Sharon, I'm going to take a crack at this -- although I may be completely off base and if so, I'm sure
@Dave can clear it up for me/us.
When you click on one of your photos ("open" it) in the binoculars view, there's a little symbol at the very bottom of the enlarged photo, right in the center of the border. Clicking on that will open a box and ask something like what plant do you want to associate it with. If you type the name in the box, I think it will add that photo to the database.
I hope that works for you!