sweet alyssum vs Lobularia maritima

sweet alyssum and Lobularia maritima both are nouns.

Word	Noun	Adjective	Verb	Adverb
sweet alyssum	Yes	No	No	No
Lobularia maritima	Yes	No	No	No

As nouns, sweet alyssum and Lobularia maritima are synonyms defined as:

sweet alyssum and Lobularia maritima: perennial European plant having clusters of small fragrant usually white flowers; widely grown in gardens

Other synonyms of sweet alyssum include sweet alison.

sweet alyssum (noun)	Lobularia maritima (noun)
perennial European plant having clusters of small fragrant usually white flowers; widely grown in gardens	perennial European plant having clusters of small fragrant usually white flowers; widely grown in gardens