Gynura aurantiaca vs houseplant

Gynura aurantiaca and houseplant both are nouns.

Word	Noun	Adjective	Verb	Adverb
Gynura aurantiaca	Yes	No	No	No
houseplant	Yes	No	No	No

As nouns, houseplant is a hypernym of Gynura aurantiaca; that is, houseplant is a word with a broader meaning than Gynura aurantiaca:

Gynura aurantiaca: Javanese foliage plant grown for their handsome velvety leaves with violet-purple hairs
houseplant: any of a variety of plants grown indoors for decorative purposes

Gynura aurantiaca (noun)	houseplant (noun)
Javanese foliage plant grown for their handsome velvety leaves with violet-purple hairs	any of a variety of plants grown indoors for decorative purposes