What is "filifolium"

Filifolium is a genus of flowering plants in the daisy family.

There is only one known species, Filifolium sibiricum, native to Japan, Korea, Mongolia, China ( Manchuria, Inner Mongolia, Hebei, Shanxi) and parts of Asiatic Russia ( Primorye, Amur, Khabarovsk, Irkutsk, Zabaykalsky Krai, Buryatiya).