ヒメムカシヨモギひめむかしよもぎMeanings1nounhorseweed; Canadian fleabaneusually written using kana aloneA common annual weed native to North America, now naturalized in Japan. Often found in disturbed areas, roadsides, and fields.道みち端ばたにヒメムカシヨモギがたくさん生はえている。A lot of horseweed is growing by the roadside.