leaf vs dentate leaf

leaf and dentate leaf both are nouns.

Word	Noun	Adjective	Verb	Adverb
leaf	Yes	No	Yes	No
dentate leaf	Yes	No	No	No

As nouns, dentate leaf is a hyponym of leaf; that is, dentate leaf is a word with a more specific, narrower meaning than leaf:

leaf (noun)	dentate leaf (noun)
hinged or detachable flat section (as of a table or door)	a leaf having a toothed margin
a sheet of any written or printed material (especially in a manuscript or book)
the main organ of photosynthesis and transpiration in higher plants

leaf (verb)	dentate leaf (verb)
produce leaves, of plants
turn over pages
look through a book or other written material