Bletilla striata var. japonica f. gebina
4th June 2014
There are a lot of names for white Bletilla going around. If you have a botanical inclination then I thjink this is the name that covers them.
There is scope for some clones to be named as cultivars but I don't think it has happened yet. I think the white clutivars named so far
are seed strains (I may well be entirely wrong in all respects - nothing new there).