noun
true indigo; Indigofera tinctoria
A plant species used for indigo dye. In Japanese, the name literally means 'Taiwan komatsunagi' (a type of indigo).
タイワンコマツナギは藍染めの原料として知られている。
Taiwan komatsunagi is known as a source of indigo dye.
Refers to a related plant (Indigofera pseudotinctoria) native to Japan and China, while タイワンコマツナギ specifically denotes the Taiwanese species used for indigo.
Compound of 台湾 (Taiwan) + 駒繋 (komatsunagi, a type of indigo plant). The exact derivation of 駒繋 is uncertain, but it literally means 'foal tether'.