the large white flowers have sharply pointed petal apexes. Flower tubes are long with a faint pink tint (temperature sensitivity). The white petals are described as a yellow-white. Stamens are pinkish white with creamy colored pollen-coated anthers. Style is magenta red with a magenta colored stigma stationed well above the anthers. 'Hakucho Tokai' is a midseason bloomer. Buds are pale yellowish green. Said to differ from the pollen parent 'White Christmas' by having pale yellowish-green 0.5 cm. buds while 'White Christmas' has a darker green bud at this size and by having larger flowers.
growth habit is semi-erect. The average sized phylloclades are deeply notched with 3 large, forward facing dentitions per marginal side to the apex.