paper white vs daffodil

paper white and daffodil both are nouns.

Word	Noun	Adjective	Verb	Adverb
paper white	Yes	No	No	No
daffodil	Yes	No	No	No

As nouns, daffodil is a hypernym of paper white; that is, daffodil is a word with a broader meaning than paper white:

paper white: a daffodil having star-shaped white blossoms; often grown indoors to bloom in the winter
daffodil: any of numerous varieties of Narcissus plants having showy often yellow flowers with a trumpet-shaped central crown

Other hypernyms of paper white include Narcissus pseudonarcissus.

paper white (noun)	daffodil (noun)
a daffodil having star-shaped white blossoms; often grown indoors to bloom in the winter	any of numerous varieties of Narcissus plants having showy often yellow flowers with a trumpet-shaped central crown