About Carex tristachya Thunb.
Carex tristachya, commonly known as the shiny-spike sedge, is a species of flowering plant belonging to the genus Carex. It is native to south-central and southeast China โ including Hainan and Taiwan โ as well as Korea, Japan, the Ryukyu Islands, the Philippines, Borneo, and New Guinea. The seeds of this species are dispersed by ants.