stinking nightshade vs Hyoscyamus niger

stinking nightshade and Hyoscyamus niger both are nouns.

Word	Noun	Adjective	Verb	Adverb
stinking nightshade	Yes	No	No	No
Hyoscyamus niger	Yes	No	No	No

As nouns, stinking nightshade and Hyoscyamus niger are synonyms defined as:

stinking nightshade and Hyoscyamus niger: poisonous fetid Old World herb having sticky hairy leaves and yellow-brown flowers; yields hyoscyamine and scopolamine

Other synonyms of stinking nightshade include black henbane, henbane.

stinking nightshade (noun)	Hyoscyamus niger (noun)
poisonous fetid Old World herb having sticky hairy leaves and yellow-brown flowers; yields hyoscyamine and scopolamine	poisonous fetid Old World herb having sticky hairy leaves and yellow-brown flowers; yields hyoscyamine and scopolamine