field bean vs broad-bean plant

field bean and broad-bean plant both are nouns.

Word	Noun	Adjective	Verb	Adverb
field bean	Yes	No	No	No
broad-bean plant	Yes	No	No	No

As nouns, field bean and broad-bean plant are synonyms defined as:

field bean and broad-bean plant: Old World upright plant grown especially for its large flat edible seeds but also as fodder

Other synonyms of field bean include broad-bean, broad bean, English bean, European bean, Vicia faba.

field bean (noun)	broad-bean plant (noun)
Old World upright plant grown especially for its large flat edible seeds but also as fodder	Old World upright plant grown especially for its large flat edible seeds but also as fodder