Isotentski , scientific name: Fimbristylis pacifica , is a perennial sedge of the Cyperaceae department ,of the Fimbristylis genus native to the rocky coast in Japan. Elongated needle like leaves and stem tips in small flowers without petals, overlapping scales, could Brown spikelets. Harry congeneric Yamani and the Department of different species (Eleocharis), but with different habitats.
Furthermore, isoyamatenzki (isoyama point poking, Scientific name: Fimbristylis pacifica, , Sedge of fimbristylis : Izu peninsula, Shikoku, Kyushu sub-Saharan , Environment: coastal ,Plant heigh: 15 ~ 40 cm,
Flowering time: August-October, Spikelet colors: Brown, spikelet length :1 cm.