frost-weed vs frostweed

frost-weed and frostweed both are nouns.

Word	Noun	Adjective	Verb	Adverb
frost-weed	Yes	No	No	No
frostweed	Yes	No	No	No

As nouns, frost-weed and frostweed are synonyms defined as:

frost-weed and frostweed: perennial of the eastern United States having early solitary yellow flowers followed by late petalless flowers; so-called because ice crystals form on it during first frosts

Other synonyms of frost-weed include Crocanthemum canadense, frostwort, Helianthemum canadense.

As nouns, frost-weed and frostweed are synonyms defined as:

frost-weed and frostweed: tall perennial herb having clusters of white flowers; the eastern United States

Other synonyms of frost-weed include Verbesina virginica, Virginia crownbeard.

frost-weed (noun)	frostweed (noun)
perennial of the eastern United States having early solitary yellow flowers followed by late petalless flowers; so-called because ice crystals form on it during first frosts	perennial of the eastern United States having early solitary yellow flowers followed by late petalless flowers; so-called because ice crystals form on it during first frosts
tall perennial herb having clusters of white flowers; the eastern United States	tall perennial herb having clusters of white flowers; the eastern United States