Synonym: Damnacanthus formosanus.
Japanese: Ari-doshi = spear ants; Ichi-ryo.
Region: Japan, Korea, China, Thailand, India.
Chromosomal number: unknown
BotanyShrub; evergreen; 30- to 60 cm tall.
Leaves 1 to 2.5 cm long.
Flower: white corolla; 1 cm; flowering in May.