kohleria vs houseplant

kohleria and houseplant both are nouns.

Word	Noun	Adjective	Verb	Adverb
kohleria	Yes	No	No	No
houseplant	Yes	No	No	No

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

kohleria: shrubby herb cultivated for their soft velvety foliage and showy scarlet flowers
houseplant: any of a variety of plants grown indoors for decorative purposes

kohleria (noun)	houseplant (noun)
shrubby herb cultivated for their soft velvety foliage and showy scarlet flowers	any of a variety of plants grown indoors for decorative purposes