Fl. forming a double triangle; perianth and other petaloid segments yellowish white, in several whorls; the outer whorls broadly ovate, blunt, mucronate, spreading, plane to a little concave, smooth and of membranaceous substance, overlapping one-third to a half; the inner whorls shorter than the outer whorls, becoming inflexed and more deeply concave towards the center; corona segments interspersed among the petaloid segments and clustered at center, yellowish white, margins wavy and lobed. Strongly scented.