We are accustomed to seeing invasive species as nasty. They tend to outcompete their more timid local species that we like and may spend a lot of time and money to eradicate them. We never think of orchids as invasive species. Even though they are one of the largest families of wild flowers in the world, no where are they dominant or threaten dominance. They are like Canadians. Nice guys.
But just a couple of years ago a new orchid was discovered in Manitoba in St. Vital park. it is the Broad-leaved Helleborine orchid (Epipactus helleborine). This photograph does not really do it justice as it shows the flower just starting to emerge from the bud, but frankly it is a pretty plain orchid anyway. I got there too early to see it in bloom.