The link Dirk was talking about.
Link attached:
my enclosures
As dirk said, you don't have to have live plants in ones enclosure to make it look good, you can think out the box an even use Lego if you wanted.
I have never had luck using live plants, I just use bark, sticks, leaves, plastic plants and sometimes I use stones and backdrops.
As for what plants to use, Huzi gave you a couple of nice ones, and also you must wash your plants before you add them to your enclosure, the best thing to do when buying them is ask when last they were sprayed with pesticides.
Plants also help with humidity and make the enclosure look nice, but you have to still give the plant some light or it just dies.