蓼knotweed, polygonum; polygonum; smartweed; luxuriant growthStrokes14Pinyinliǎo, lùParts艹grass, weed, plant, herb翏the sound of the windWords with 蓼蓼蓝liǎo lán · liaolanindigo dye; Polygonum tinctoriumStudy it in Yanamino