Hi Orchidophile,
I have 3 goeringii, all are different in that they have the same lead name of goeringii, but the leaves are totally different. The 'Sankaho' could just be a local or district name tag. It could be any of the Asian country's version of a Cym. georingii
One of mine is Cym. goeringii 'china' which has long thin grass like leaves and only has 1 flower per spike and another has wider, but shorter leaves and has 2 flowers per spike (still trying to find out here this one comes from)
So until it flowers, and you can compare flower photos you may not know if it comes from Japan, Korea or the Himalayas