As Arthur said, the problem is going to be availability. There are a few large flowered natives eg Phaius tankervilleae, Phalaenopsis rosenstromii, Dendrobium capitisyork and its hybrids and several Caladenia but you'd be hard pressed getting a florist to find them. As you're in NSW, have you considered Dendrobium speciosum (if it's a spring wedding?) The flowers are only around 1 1/2" but the spikes are sufficiently crammed with flowers to give any other native flower a run for its money. You'd probably need to get in touch with some larger native growers or native orchid nurseries in your area to source them but you may be able to come to an agreement between the florist and the grower. However, it may be very difficult assuring good quality flowers at the right time. If you're looking for native orchid growers or nurseries ask at the nearest ANOS group. Go to the links page of their website: http://www.anos.org.au Personally, as weddings are a string of problems waiting to eventuate, I'd be inclined to forego the native orchids or bend the rules and use readily available exotics to save yourself an additional stress. Sorry for the chary, married-male response. Andrew

Wow!!! 2 of the top 4 or 5 genii on this site stumped? I don't think Coprosma. I agree similar type of growth, but just doesn't seem to match any other criteria I see on the web. This one, apart from anything else, is not far short of 3m tall Back to my reference books for futher inspiration - I hope

Must plead guilty to never taking any photos. Got frustrated a few years ago when driving around England doing the touristy thing and looking for orchids here and there and of course finding none. There are probably many orchids in other parts of the world described as a leafless saprophytes which cannot be cultivated

Seeds from Australian native citrus