lizard's-tail vs Saururus cernuus

lizard's-tail and Saururus cernuus both are nouns.

Word	Noun	Adjective	Verb	Adverb
lizard's-tail	Yes	No	No	No
Saururus cernuus	Yes	No	No	No

As nouns, lizard's-tail and Saururus cernuus are synonyms defined as:

lizard's-tail and Saururus cernuus: North American herbaceous perennial of wet places having slender curled racemes of small white flowers

Other synonyms of lizard's-tail include swamp lily, water dragon.

lizard's-tail (noun)	Saururus cernuus (noun)
North American herbaceous perennial of wet places having slender curled racemes of small white flowers	North American herbaceous perennial of wet places having slender curled racemes of small white flowers