Fl. 100 mm wide, facing up; perianth and other petaloid segments 41 mm long, greenish white, in two whorls; the outer whorl broad, oblong in outline, rounded at apex, slightly mucronate, spreading, plane or with margins incurved, with midrib showing, of heavy substance, overlapping one third to a half; the inner segments more nearly ovate, shouldered at base, blunt; the inner whorls, strongly inflexed, folded inwards from midrib, with margins wavy; corona in several whorls; the outer whorl entire, 40 mm long, cup-shaped, smooth, yellow-orange, mouth flared, narrowly ribbed, frilled, irregularly lobed, with rim rolled and crenate; the inner whorls split into segments half the length of the perianth and other petaloid segments, tightly clustered at center, yellow-orange, deeply folded, with margins wavy. Sweetly scented.