Solanum vs bittersweet

Solanum and bittersweet both are nouns.

Word	Noun	Adjective	Verb	Adverb
Solanum	Yes	No	No	No
bittersweet	Yes	Yes	No	No

Solanum (noun)	bittersweet (noun)
type genus of the Solanaceae: nightshade, potato, eggplant, bittersweet	twining shrub of North America having yellow capsules enclosing scarlet seeds
	poisonous perennial Old World vine having violet flowers and oval coral-red berries; widespread weed in North America

Solanum (adjective)	bittersweet (adjective)
	tinged with sadness
	having a taste that is a mixture of bitterness and sweetness