Nutmace is a spice. They have nutty, warm and slightly sweet flavour in its natural states. They are part of indian garam masala. Mace is a lighter colour and can be used in light coloured dishes
Cardamom of commerce is the dried ripe fruit (capsules of cardamom plant) often referred as the “Queen of Spices” because of its very pleasant aroma and taste. Cardamom is a perennial, herbaceous, rhizomatous plant.