The bonegrass split from its ancestor, the jeluki boneflora. It has left Jeluki Salt Swamp and now lives in the intertidal zone of the northern tropical beaches of Darwin. During high tide the live much like their ancestor, but during low tide they have become more adapted to land. Like its ancestor must use the seawater of high tide to absorb calcium through calcification. This gives it a hard exoskeleton trunk.
The they now bud off lots of bony stalks which each have a red red photosynthetic shell at the top. At the end of the shell are spore which are released in the water during high tide. Unlike their ancestors the spores combine with each other via sexual reproduction. This gives them more genetic diversity than their relatives.