At the moment - Irish lady's-tresses - the smell of the flowers in totally unique and they grow in Britian's most remote and beautiful places
But, the bee orchid is still one I love to bits (especially my local ones)

I nearly had a heart attack the first time I saw one because I'd been waiting to see one for so long
My local limodorum abortivum (in Bulgaria) are also my favourites because they are huge and I discovered them
mike