Fls 1(2) per stem, forming a double triangle, 100mm wide; perianth segments 43mm long, ovate, blunt, prominently mucronate, spreading, plane, with margins incurved, with midrib showing, of heavy substance, overlapping half; the inner segments narrower, scarcely mucronate; corona 35mm long, funnel-shaped, angled, mouth ribbed, even and shallowly lobed, with rim flanged and entire. 

Named after the former WWII German Prisoner of War camp just North by West from Arkansas City, Arkansas.