Woofie, just order from Rosy Dawn, then you'll know.
Or, any nurseryman at a good reputable nursery should be able to tell you which is which. Some garden centers only have seed varieties.
One clue, the seed grown ones tend to be named by the series. There are lots of different series
http://www.swallowtailgardense...
Notice, each series consists of lots of different colors and names, but the main name is for the series - e.g. rainbow, wizard, versa, kong, etc But each series is made of lots of individual types.
With the vegetative ones, each individual one has it's own name. (off-the-wall names maybe, but...)
http://www.rosydawngardens.com...
Once you get into coleus, you can usually tell by their names.
Karen