Fl. forming a double triangle, 52mm wide; perianth and other petaloid segments in three whorls; outer whorls 21mm long, ovate, blunt, mucronate, bright yellow, spreading, plane or with margins incurved; inner whorl shorter, inflexed and concave; corona 11mm long, straw yellow, interspersed among inner perianth whorls, somewhat crumpled or folded inwards along midrib. Mid-season. Sunproof