noun
Shichito matgrass; Cyperus malaccensis
A species of sedge used for weaving mats and other traditional crafts. The name refers to the Izu Islands (七島), where it was historically cultivated.
七島藺は畳表の材料として使われてきた。
Shichito matgrass has been used as a material for tatami facing.
The name 七島藺 literally means 'seven-island rush', referring to the Izu Islands where it was traditionally grown.