The Circumpolar starwort (Stellaria ruscifolia) belongs to Caryophyllaceae (the Carnation family). It is a perennial herb that is native from Chubu district of Honshu north to Hokkaido in Japan, as well as North-east Asia and Alaska. This herb grows on sub-alpine to alpine screes, and it can reach 10-20 cm in height. The leaves are ovate to ovate-lanceolate, tinged powdery white, and alternate. The white flowers bloom atop of stems in summer. The petals are deep bilobate and give the appearance of ten-petals. The Japanese name is derived from the findspot, Shikotan Island.