genus Tanacetum vs Tanacetum cinerariifolium

genus Tanacetum and Tanacetum cinerariifolium both are nouns.

Word	Noun	Adjective	Verb	Adverb
genus Tanacetum	Yes	No	No	No
Tanacetum cinerariifolium	Yes	No	No	No

genus Tanacetum (noun)	Tanacetum cinerariifolium (noun)
a large genus of plants resembling chrysanthemums; comprises some plants often included in other genera especially genus Chrysanthemum	white-flowered pyrethrum of Balkan area whose pinnate leaves are white and silky-hairy below; source of an insecticide; sometimes placed in genus Chrysanthemum