Petroselinum crispum neapolitanum vs Italian parsley

Petroselinum crispum neapolitanum and Italian parsley both are nouns.

Word	Noun	Adjective	Verb	Adverb
Petroselinum crispum neapolitanum	Yes	No	No	No
Italian parsley	Yes	No	No	No

As nouns, Petroselinum crispum neapolitanum and Italian parsley are synonyms defined as:

Petroselinum crispum neapolitanum and Italian parsley: a variety of parsley having flat leaves

Other synonyms of Petroselinum crispum neapolitanum include flat-leaf parsley.

Petroselinum crispum neapolitanum (noun)	Italian parsley (noun)
a variety of parsley having flat leaves	a variety of parsley having flat leaves