Parthenium hysterophorus shine sunan kimiyya na nau'in tsiro da aka fi sani da "Cire Majalisa" ko "Cire karas." Kalmar "Parthenium" ta samo asali ne daga kalmar Helenanci "Parthenos," wanda ke nufin "budurwa," da kuma "hysterophorus" na nufin "ba da tsaba a cikin mahaifa." Ita wannan shuka ta fito ne daga Amurka ta Tsakiya da Kudancin Amurka amma yanzu ana samunta a duk duniya kuma ana daukarta a matsayin nau'in cin zarafi a sassa da dama na duniya.