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.
Lepilaena Lepilaena is a genus of aquatic and marine flowering plant comprising 6 or more species endemic to coastal and brackish or alkaline inland waters of temperate Australia, Tasmania, and New Zealand.