parallel-veined leaf vs leaf

parallel-veined leaf and leaf both are nouns.

Word	Noun	Adjective	Verb	Adverb
parallel-veined leaf	Yes	No	No	No
leaf	Yes	No	Yes	No

As nouns, leaf is a hypernym of parallel-veined leaf; that is, leaf is a word with a broader meaning than parallel-veined leaf:

Other hypernyms of parallel-veined leaf include foliage, leafage.

parallel-veined leaf (noun)	leaf (noun)
a leaf whose veins run in parallel from the stem	hinged or detachable flat section (as of a table or door)
	a sheet of any written or printed material (especially in a manuscript or book)
	the main organ of photosynthesis and transpiration in higher plants

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