mad-dog skullcap vs blue skullcap

mad-dog skullcap and blue skullcap both are nouns.

Word	Noun	Adjective	Verb	Adverb
mad-dog skullcap	Yes	No	No	No
blue skullcap	Yes	No	No	No

As nouns, mad-dog skullcap and blue skullcap are synonyms defined as:

mad-dog skullcap and blue skullcap: an American mint that yields a resinous exudate used especially formerly as an antispasmodic

Other synonyms of mad-dog skullcap include blue pimpernel, mad-dog weed, Scutellaria lateriflora.

mad-dog skullcap (noun)	blue skullcap (noun)
an American mint that yields a resinous exudate used especially formerly as an antispasmodic	an American mint that yields a resinous exudate used especially formerly as an antispasmodic