Anyone have any idea what this dendrobium is? I bought it out of bloom and the tag was broken. It looks like it says Den. sanderae x ????? The plant without flower spikes is 13" tall from the top of the bark, and the flowers are 2 1/2 inches across.
It's a Dendrobium phalaenopsis type hybrid crossed with Latouria type. Real Den sanderae is a formosae type with large white flower and big lip from Phillippine. =)
http://www.orchidspecies.com/densanderae.htm It seems there are a few varieties of Den. sanderae. Some do look like they could possibly be a parent. The bloom shape does look like a latouria type, but I'm far from an expert. Don't know where the color came from... Maybe some other members may have an idea... good luck!