meadow saffron vs autumn crocus

meadow saffron and autumn crocus both are nouns.

Word	Noun	Adjective	Verb	Adverb
meadow saffron	Yes	No	No	No
autumn crocus	Yes	No	No	No

As nouns, meadow saffron and autumn crocus are synonyms defined as:

meadow saffron and autumn crocus: bulbous autumn-flowering herb with white, purple or lavender-and-white flowers; native to western and central Europe

Other synonyms of meadow saffron include Colchicum autumnale, naked lady.

meadow saffron (noun)	autumn crocus (noun)
bulbous autumn-flowering herb with white, purple or lavender-and-white flowers; native to western and central Europe	bulbous autumn-flowering herb with white, purple or lavender-and-white flowers; native to western and central Europe