duckweed family vs Lemnaceae

duckweed family and Lemnaceae both are nouns.

Word	Noun	Adjective	Verb	Adverb
duckweed family	Yes	No	No	No
Lemnaceae	Yes	No	No	No

As nouns, duckweed family and Lemnaceae are synonyms defined as:

duckweed family and Lemnaceae: family of small free-floating thalloid plants

Other synonyms of duckweed family include family Lemnaceae.

duckweed family (noun)	Lemnaceae (noun)
family of small free-floating thalloid plants	family of small free-floating thalloid plants