Demdrobium jensinkii (formerly know as aggregatum)
Officially changed it's name to jensinkii, probably because no one ever used agregatum. I always called it Dend aggrevatum as it aggravated the hell out of me over the years. Even though I knew exactly what needs to be done, I could not make that thing bloom with consistency. This is one of 4 plants I'm growing. The other 3 are giving me the finger. It has a short spike as shown and a longer one with about 15 buds, not yet open.
Comes from the slopes of the Himalayas, cool to warm grower, has to have a dry winter rest. I only water it with Holy Water but still have only patchy success.