Iwa-tsumekusa (Rock Chickweed)
Stellaria nipponica
Family: Caryophyllaceae / Genus: Stellaria / Perennial herb
Height: 10–20 cm Flower color: White Blooming season: Early July – Early September
It has five petals, but each is deeply split, making it appear as though there are ten.
Habitat: Alpine meadows, Tsurugaike trail, Ken-ga-mine trail, restricted roads
Note: Around the Fujimi-dake trailhead, white Iwa-tsumekusa and red Komakusa bloom together in striking contrast.