りゅうきゅうあい

noun

Assam indigo; Strobilanthes cusia

A plant species used to produce indigo dye, native to the Ryukyu Islands and parts of Asia. The term refers both to the plant and the dye made from it.

• 琉りゅう球きゅう藍あいは沖おき縄なわの伝でん統とう的てきな染せん料りょうの原げん料りょうです。

  Ryukyu indigo is a raw material for traditional Okinawan dye.

• この布ぬのは琉りゅう球きゅう藍あいで染そめられています。

  This cloth is dyed with Ryukyu indigo.