Epidendrum stamfordianum and it's going to flower. Epi. stamforidanum is unusal in that it flowers from a specialized shoot. Mine is flowering to at the moment.
Some species in the Cattleya alliance, like Brassavola acaulis have flowers stalks that emerge from the rhizome. So maybe there are Epi. species that do this. And if this is a hybrid, it may have inherited this trait from any parents that do this. I have heard stories if people 'chids randomly throwing out flowers from the rhizime along with the usual method that have a parent that does. Just my
Here is a link for a pic of the flower and some info. IOSPE PHOTOS Do you have a picture of the whole plant, or any close ups of where the inflorescence emerges. I definately find this interesting and I hope you frequently update us all!