ID Help for Dendrobium speciosum

[smweaver]

I got this plant a long time ago as a tiny seedling that was labeled Dendrobium speciosum. Now that it's getting larger, however, I'm trying to determine which of the subspecies it might be. Can anyone who's familiar with speciosum and its numerous variants (curvicaule, tarberi, capricornicum, etc.) give me a hand with identifying it, please? The reason I think it might be one of the subspecies is that A) I couldn't find any online pictures of the standard variety of speciosum (even young ones) that look like this one, and B) on the old tag there's a very faded reference to a "var. compactum" (which didn't seem to be of much help as I couldn't find a reference to any speciosum compactum on the web). If anyone wants to take a shot at identifying it, I would greatly appreciate your help. Thank you!

Steve