Kalmar "Genus Ambrosia" tana nufin rarrabuwa taxonomic na tsire-tsire waɗanda ke cikin dangin Asteraceae, wanda aka fi sani da dangin daisy. Wannan nau'in ya hada da nau'ikan tsire-tsire masu furanni, wasu daga cikinsu ana kiransu ragweeds. Kalmar “ambrosia” ta fito ne daga kalmar Helenanci don “abincin alloli,” kuma an zaɓe shi ne saboda an yi amfani da wasu nau’in jinsin don magani da na abinci a da. Duk da haka, yawancin nau'in nau'in wannan nau'in yanzu ana ɗaukar su ciyawa ne kuma galibi ana danganta su da rashin lafiyan yanayi.