genus Ambrosia vs ambrosia

genus Ambrosia and ambrosia both are nouns.

Word	Noun	Adjective	Verb	Adverb
genus Ambrosia	Yes	No	No	No
ambrosia	Yes	No	No	No

genus Ambrosia (noun)	ambrosia (noun)
comprising the ragweeds; in some classification considered the type genus of a separate family Ambrosiaceae	(classical mythology) the food and drink of the gods; mortals who ate it became immortal
	fruit dessert made of oranges and bananas with shredded coconut
	any of numerous chiefly North American weedy plants constituting the genus Ambrosia that produce highly allergenic pollen responsible for much hay fever and asthma
	a mixture of nectar and pollen prepared by worker bees and fed to larvae