I had actually at one point talked with Trish about having a feature similar to this, but I didn't see it as directly tied into the database but more of a "Webapps" type feature. The idea was that you could upload a photo (or series of photos) and then give information about all the different plants that are present, and then these plant names would link into the database.
I was unsure how exactly it would be best presented and so I kind of stopped thinking about it. But I still like the idea.