Zuzu's reference to a gallery was correct. That's the term we use to describe which kind of photo you are uploading.
My fear is that we don't want that list to get too long. It wasn't meant to be really long with a lot of options. Really, it was originally just intended to be a handful of choices and let the caption serve to give any further detail.
I'd like to leave Webbing off as an option. If you're posting a photo of a plant with webbing, you should enter "Entire Plant" or "Leaves" or whatever you're zoomed in on, and if you want to add a caption talking about the webbing then that would be good.
