Pisum arvense vs field-pea plant

Pisum arvense and field-pea plant both are nouns.

Word	Noun	Adjective	Verb	Adverb
Pisum arvense	Yes	No	No	No
field-pea plant	Yes	No	No	No

As nouns, Pisum arvense and field-pea plant are synonyms defined as:

Pisum arvense 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 Pisum arvense include Austrian winter pea, field pea, Pisum sativum arvense.

Pisum arvense (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