Fl. 100 mm wide; perianth segments broad in outline, blunt or truncate at apex, prominently mucronate, spreading, concave, overlapping half; inner segments slightly mucronate, margins wavy; cup is split to base, the six segments half as long as the perianth segments and alternate, ovate, truncate sometimes deeply bi-lobed, yellow at base and in a longitudinal band at midrib narrowing towards the apex, with yellow sometimes touched orange and with broad patches of white at margins, spreading or a little inflexed, margins wavy or incurled, overlapping, with some short extra growths at the overlap.