Yes, humans and lilies are a lot the same, but a lot different, too.
Coming true from seed means the basic genetics stay the same, but differences will be present. Again, looking a the big picture scenario, we humans see each of ourselves as vastly different people, but we look at a species, dolphins, for instance, and they all look the same. But to a dolphin, each can easily tell one from another. So it is with lily species (or any other species in nature): there are a lot of differences that we (not being that species) don't see.
