A spice plant with aromatic seeds (Nigella sativa).
A cultivated variety of cumin (Cuminum cyminum).
A spice plant related to cumin with dark seeds and an edible root (Bunium bulbocastanum).
Nigella damascena, an annual flowering plant of the genus Nigella, the blooms of which are generally blue in colour, though also found in shades of pink, white or pale purple.