Fl. rounded, 100 mm wide; perianth and other petaloid segments broadly ovate, vivid yellow, with prominent white mucro; the outer whorl spreading, concave, smooth, overlapping half; inner whorls inflexed; corona segments 3/4 the length of the outer whorl of yellow segments and interspersed among the inner whorls, opening yellow, becoming yellowish pink, fading with age, bi-lobed, with margins wavy or deeply incurling; sometimes comes semi-double; has both pollen & pistil.