prickly-seeded spinach vs Spinacia oleracea

prickly-seeded spinach and Spinacia oleracea both are nouns.

Word	Noun	Adjective	Verb	Adverb
prickly-seeded spinach	Yes	No	No	No
Spinacia oleracea	Yes	No	No	No

As nouns, prickly-seeded spinach and Spinacia oleracea are synonyms defined as:

prickly-seeded spinach and Spinacia oleracea: southwestern Asian plant widely cultivated for its succulent edible dark green leaves

Other synonyms of prickly-seeded spinach include spinach, spinach plant.

prickly-seeded spinach (noun)	Spinacia oleracea (noun)
southwestern Asian plant widely cultivated for its succulent edible dark green leaves	southwestern Asian plant widely cultivated for its succulent edible dark green leaves