This form isn't identical with var. leucopharynx although it also has white throat. What is correct name for it I don't know, may be it is some hybrid? I got it under name of C. karduchorum from Gothenburg Botanical garden, what it certainly isn't due yellow and little branched stigma and "normal" position of corm in the soil (with axis vertical). Regardless of name it is very beautiful with comparatively smaller flowers than in its relatives from Series Kotschyani.