Orchids grow in swamps.
At least, they do in South Australia and I have no doubt they do in other parts of the world. Most orchids love water. And there are at least three very different orchids that refuse to grow anywhere else beside swamps.
First is the Moose Orchid.
Then there is the Spiral Orchid.
The Spiral Orchid comes in a white variety as well as pink.
And there is also a little Sun Orchid.