deciduous holly vs holly

deciduous holly and holly both are nouns.

Word	Noun	Adjective	Verb	Adverb
deciduous holly	Yes	No	No	No
holly	Yes	No	No	No

As nouns, holly is a hypernym of deciduous holly; that is, holly is a word with a broader meaning than deciduous holly:

deciduous holly: a holly tree, also known as possumhaw or swamp holly
holly: any tree or shrub of the genus Ilex having red berries and shiny evergreen leaves with prickly edges

deciduous holly (noun)	holly (noun)
a holly tree, also known as possumhaw or swamp holly	any tree or shrub of the genus Ilex having red berries and shiny evergreen leaves with prickly edges