pepperwort vs Lepidium sativum

pepperwort and Lepidium sativum both are nouns.

Word	Noun	Adjective	Verb	Adverb
pepperwort	Yes	No	No	No
Lepidium sativum	Yes	No	No	No

As nouns, pepperwort and Lepidium sativum are synonyms defined as:

pepperwort and Lepidium sativum: annual herb used as salad green and garnish

Other synonyms of pepperwort include common garden cress, garden pepper cress, pepper grass.

pepperwort (noun)	Lepidium sativum (noun)
annual herb used as salad green and garnish	annual herb used as salad green and garnish
any of several water ferns of the genus Marsilea having four leaflets