Crocus and Saffron

Crocus noun - Any of numerous low-growing plants of the genus Crocus having slender grasslike leaves and white or yellow or purple flowers; native chiefly to the Mediterranean region but widely cultivated.

Saffron and crocus are semantically related. In some cases you can use "Saffron" instead a noun "Crocus".

Saffron noun - Old World crocus having purple or white flowers with aromatic pungent orange stigmas used in flavoring food.

Crocus and saffron are semantically related. You can use "Crocus" instead a noun "Saffron".