The number of sepals, stamens and carpels follow this same pattern.

Paris japonica is the previous record-holder of the largest genome of any plant yet assayed, about 150 billion base pairs long.

[3][4] The flower has 19 billion more base pairs than the previous record holder, the marbled lungfish, whose 130 billion base pairs weigh in at 132.83 picograms per cell.

[3][4] Since then, other organisms have been assayed and reported to have larger genomes; The fork fern, Tmesipteris truncata has 160.45 billion base pairs per cell.

[5] The amoebozoan Polychaos dubium may have 670 billion base pairs per cell, but that measurement should be taken with caution because it was taken before the advent of modern genomic methods.