Crocus sativus vs saffron

Crocus sativus and saffron both are nouns.

Word	Noun	Adjective	Verb	Adverb
Crocus sativus	Yes	No	No	No
saffron	Yes	No	No	No

As nouns, Crocus sativus and saffron are synonyms defined as:

Crocus sativus and saffron: Old World crocus having purple or white flowers with aromatic pungent orange stigmas used in flavoring food

Other synonyms of Crocus sativus include saffron crocus.

Crocus sativus (noun)	saffron (noun)
Old World crocus having purple or white flowers with aromatic pungent orange stigmas used in flavoring food	a shade of yellow tinged with orange
	dried pungent stigmas of the Old World saffron crocus
	Old World crocus having purple or white flowers with aromatic pungent orange stigmas used in flavoring food