"Himo-kazura" (Selaginella shakotanensis) belongs to Selaginellaceae (the Spikemoss family). It is an evergreen moss that is distributed from the Chubu region of Honshu northward to Hokkaido in Japan, as well as in the southern Kuril Islands, Sakhalin, and the Korean Peninsula. It grows on damp rocks and in crevices in mountainous areas. The stems are thin and well branched, crawling on the ground or rocks and forming mats. The leaves are dark green and somewhat stiff, and are attached to the stem in a spiral shape. The leaf margins are sparsely hairy, and the tips have white hair-like appendages. The sporangia are attached to the tips of the lateral branches, and the sporangia are spherical.