The purpose is to allow plants to be seen in a grouping...
do you mean your photo of echinacea and my photo of echinacea and everyone else's photo of echinaceas, or are you talking about my photo with echinacea, delphinium, balloon flower and rudbeckia?
That's where I am confused. So if it's to group everyone's echinacea photo, that's why you use the database ID#? URL from internet address line of WHAT? the echinacea database?
Sorry if I seem dense but this is just not soaking in here.