Are both Nigella and Leucanthemella both plants?
Nigella Nigella is a genus of 18 species of annual plants in the family Ranunculaceae, native to southern Europe, north Africa, south and southwest Asia. Common names applied to members of this genus are nigella, devil-in-a-bush or love-in-a-mist.
Vella (plant) Vella is a genus of plants in the family Brassicaceae, under which there are no fewer than six species. Species are many branched, and have hairy, sessile, entire leaves that are narrower in width at their bases, widening out to form ovals. Fruits are stiff follicles. "Vella" is endemic to that area of land encompassing Algeria, Morocco, and Spain.