Black cumin – Nigella sativa

Nigella sativa is an annual in Ranunculaceae. Finely divided leaves contrast with inflated fruits made up of joined follicles containing numerous seeds. The common names black cumin and black onion seed can obscure its identity: this is a Nigella species, rather than an Allium. The botanical name keeps the seed entry unambiguous. Black cumin is the catalogue designation for this seed entry.