corn cockle vs Agrostemma

corn cockle and Agrostemma both are nouns.

Word	Noun	Adjective	Verb	Adverb
corn cockle	Yes	No	No	No
Agrostemma	Yes	No	No	No

corn cockle (noun)	Agrostemma (noun)
European annual having large trumpet-shaped reddish-purple flowers and poisonous seed; a common weed in grainfields and beside roadways; naturalized in America	a caryophylloid dicot genus including corn cockles