Fritillaria affinis wani nau'in tsiro ne da aka fi sani da lily checker, mission bell ko cakulan lily. Ya fito ne daga yammacin Arewacin Amurka kuma yana cikin dangin Liliaceae. Tsiren yana da furanni masu sifar kararrawa, waɗanda galibi launin ja-launin ruwan kasa ne ko shunayya mai alamar rawaya. Kalmar “affinis” a cikin sunan kimiyya tana nufin alaƙarta ko alaƙarta da sauran membobin zuriyar Fritillaria.