Fl. rounded, 100 mm wide; perianth segments very broadly ovate, blunt or roundish at apex, prominently mucronate, spreading, plane, smooth and of heavy substance, overlapping one-third to a half; the inner segments a little twisted; corona split to base, the 6 segments opposite and closely overlying the perianth segments to two-thirds their length, ribbed, deep pink, with a broad area of yellow at base, deeply frilled, with rim dentate.