Thanks for raising that question.

It is common In the art of aromatic plants to say that both are synonyms. However, scientifically they are not.

Let me cite from Wikipedia site the difference:

From Wikipedia, the free encyclopedia: https://en.wikipedia.org/wiki/Black_cumin

Black cumin can refer to the seeds of either of two quite different plants, both of which are used as spices:

• Bunium bulbocastanum, black cumin is considered similar to caraway, but they are two distinctly different plants. The seeds differ dramatically in shape, color and size.
• Nigella sativa, black caraway is also called kalonji or nigella, and more common in the Far East, Mideast, India and Africa. Hoping that is helpful
• Amr Edris

Dear Dr Edris,

Thanks a lot for your informative answer. I hope people stop saying that these two plants are same.

Have a very good day

Would it be right to say:

Black cumin is scientifically known as: "Carum carvi"

while Black seed is: "Nigella Sativa"?

I personally do not agree to call black cumin as "Carum carvi"

On the other hand: i certainly endorse calling black seed as "Nigella sativa"

Regards

Amr

Egypt

Much appreciated Dr Edris