Oh, duh! Of course, Lin is right about that! Although, depending on what kind of plant, sometimes it's hard to get an exact ID, in which case you can always use the Parent entry in your list. But Lin's suggestion for getting a precise ID is the best first step.
Confidence is that feeling you have right before you do something really stupid.
Thanks! I have sedums, tall phlox, Shasta daisies, peony, clematis, etc. ... The home's previous owner did leave me a diagram, which was great! But it only has common names.