Ma'anar ƙamus na "bristly oxtongue" yana nufin tsire-tsire na shekara-shekara ko na shekara-shekara na dangin borage wanda ke da ƙaƙƙarfan ganye, ganyaye masu tushe da ƙananan furanni masu launin rawaya. Sunan kimiyya shine Helminthotheca echioides, amma kuma ana kiranta da bristly ox-harshen, bugloss viper, shaidan shuɗi, ko blueweed. Ita wannan shukar ta fito ne daga Turai amma ta zama ta asali a wasu sassan duniya, gami da Arewacin Amurka. Sau da yawa ana la'akari da shi azaman ciyawa mai haɗari saboda ikonsa na yaduwa da sauri kuma ya zarce nau'in tsire-tsire na asali.