Yes dvg Vanilla is a vining Orchid. Not sure if it will survie well enough to Get flowers and pods off of them, but I have done well with Dendrobims orchids here. But they are very easy to care for here. I've had 1 Vanilla vine die all ready but still have 3 left. As I cut them in 1/2 when I got them. Orchids are tough when in the rite place, and Vanilla is a vine that does not need the ground when its in the rite place.
Yes dragon fruit comes from a Vine cactus called Pitaya from Mexico I think. I still must take a pix of the Passion fruit vine and well as the Black pepper vine.
Our Coffea Bengalensis is flowering now. Its very small now and smells like Jassmine and looks alittle like it as well.
On the right is a vine from the south of Thailand which the leaves turn gold when it flowers. The next in the middle is a White ebownee, it is persimon that grow in the north of Thailand and Laos. The one at the left at the back is Black table pepper.