swallowwort vs swallow wort

swallowwort and swallow wort both are nouns.

Word	Noun	Adjective	Verb	Adverb
swallowwort	Yes	No	No	No
swallow wort	Yes	No	No	No

As nouns, swallowwort and swallow wort are synonyms defined as:

swallowwort and swallow wort: perennial herb with branched woody stock and bright yellow flowers

Other synonyms of swallowwort include celandine, Chelidonium majus, greater celandine.

swallowwort (noun)	swallow wort (noun)
perennial herb with branched woody stock and bright yellow flowers	perennial herb with branched woody stock and bright yellow flowers
tropical herb having orange-red flowers followed by pods suggesting a swallow with outspread wings; a weed throughout the tropics