crucifer vs cruciferous plant

crucifer and cruciferous plant both are nouns.

Word	Noun	Adjective	Verb	Adverb
crucifer	Yes	No	No	No
cruciferous plant	Yes	No	No	No

As nouns, crucifer and cruciferous plant are synonyms defined as:

crucifer and cruciferous plant: any of various plants of the family Cruciferae

crucifer (noun)	cruciferous plant (noun)
any of various plants of the family Cruciferae	any of various plants of the family Cruciferae