Austrian winter pea vs field-pea plant

Austrian winter pea and field-pea plant both are nouns.

Word	Noun	Adjective	Verb	Adverb
Austrian winter pea	Yes	No	No	No
field-pea plant	Yes	No	No	No

As nouns, Austrian winter pea and field-pea plant are synonyms defined as:

Austrian winter pea and field-pea plant: variety of pea plant native to the Mediterranean region and North Africa and widely grown especially for forage

Other synonyms of Austrian winter pea include field pea, Pisum arvense, Pisum sativum arvense.

Austrian winter pea (noun)	field-pea plant (noun)
variety of pea plant native to the Mediterranean region and North Africa and widely grown especially for forage	variety of pea plant native to the Mediterranean region and North Africa and widely grown especially for forage