Crocus sativus vs saffron crocus

Crocus sativus and saffron crocus both are nouns.

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

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

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