Fritillaria crassifolia is a Middle Eastern species of bulb-forming flowering plant in the lily family Liliaceae, native to Iran, Iraq, Turkey, Syria, and Lebanon.Kew World Checklist of Selected Plant FamiliesBoissier, Pierre Edmond & Huet du Pavillon, Alfred. 1859.Teksen, M. & Aytaç, Z. (2011). The revision of the genus Fritillaria L. (Liliaceae) in the Mediterranean region (Turkey). Turkish Journal of Botany 35: 447-478.Rix, Edward Martin. 1975. : Kew Bulletin 29: 641-643
Subspecies Fritillaria crassifolia subsp. crassifolia - Iran, Turkey, Syria, and Lebanon Fritillaria crassifolia subsp. hakkarensis Rix - Iraq, Turkey Fritillaria crassifolia subsp. poluninii Rix - Iraq
formerly included Fritillaria crassifolia subsp. kurdica (Boiss. & Noë) Rix, now called Fritillaria kurdica
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