Fl. forming a double triangle, 112mm wide; perianth segments 42mm long, roundish, very broad, blunt, deep yellow, with slight, white mucro, spreading, plane or with margins a little incurved, smooth and of heavy substance, overlapping half or more; the inner segments narrower, more nearly ovate, shouldered at base, scarcely mucronate; corona 22mm long, cup‑shaped, angled, deep yellow, with a sharply defined, broad band of red at rim, mouth a little expanded, wavy to lightly frilled, with rim minutely crenate.