noun
anil indigo (Indigofera suffruticosa)
A plant species used for indigo dye; scientific name Indigofera suffruticosa. Also called インド藍.
See also: インド藍
キアイはインド藍とも呼ばれる染料植物です。
Kiai is a dye plant also called Indian indigo.
noun
Assam indigo (Strobilanthes cusia)
Another indigo plant, Strobilanthes cusia, also known as 琉球藍 (Ryukyu indigo).
See also: 琉球藍
琉球藍はキアイの一種で、沖縄で栽培されています。
Ryukyu indigo is a type of kiai, cultivated in Okinawa.
The word is likely a compound of 木 (ki, 'tree') and 藍 (ai, 'indigo'), but the exact derivation is uncertain. The katakana spelling キアイ is standard in botanical contexts.