common mullein vs Verbascum thapsus

common mullein and Verbascum thapsus both are nouns.

Word	Noun	Adjective	Verb	Adverb
common mullein	Yes	No	No	No
Verbascum thapsus	Yes	No	No	No

As nouns, common mullein and Verbascum thapsus are synonyms defined as:

common mullein and Verbascum thapsus: tall-stalked very woolly mullein with densely packed yellow flowers; ancient Greeks and Romans dipped the stalks in tallow for funeral torches

Other synonyms of common mullein include Aaron's rod, flannel mullein, great mullein, torch, woolly mullein.

common mullein (noun)	Verbascum thapsus (noun)
tall-stalked very woolly mullein with densely packed yellow flowers; ancient Greeks and Romans dipped the stalks in tallow for funeral torches	tall-stalked very woolly mullein with densely packed yellow flowers; ancient Greeks and Romans dipped the stalks in tallow for funeral torches