Fl. 90 mm wide; perianth segments 35 mm long, broadly ovate, blunt, light greenish yellow, with slight white mucro, spreading to a little inflexed, concave, with raised midrib, of heavy substance, overlapping half; the inner segments narrower, spreading at base, incurved at apex, with margins more or less reflexed; corona in several whorls, 23 mm long, brilliant greenish yellow, touched with pale yellow at margins, loosely frilled; the outer whorl entire, smooth, deeply lobed, with mouth flared; the inner whorls clustered within, the segments narrow, erect. Sweetly scented.