Tropicals & Tender Perennials: help ID on Cactus Orchid, 1 by latsyrc18940

latsyrc18940 wrote:
I have post this help on ID cactus orchid b4,but since it has no flower,no one could said what it should be,so after few months of waiting,finally it flower 3 days ago and still looking good. It was a cutting from my friend, and she said it is from Vietnam and grow in her garden, now I have the flower, could some one I D it?( It might be difficult to ID it since there are so many species and hybrides)