Schomburgkia undulata fma.alba
Schom. undulata is perhaps the weirdest and "twist-iest" of all "Laelias". Most of us remember these as Schomburgkias, but the taxonomists have different ideas!
Plants eventually get 2'-3' tall pseudobulbs that produce one heck of an inflorescence once they emerge. This is obviously the green & white (alba) form of a normally purple flowered species...
Established seedlinds in 4" pots.