emarginate leaf vs foliage

emarginate leaf and foliage both are nouns.

Word	Noun	Adjective	Verb	Adverb
emarginate leaf	Yes	No	No	No
foliage	Yes	No	No	No

As nouns, foliage is a hypernym of emarginate leaf; that is, foliage is a word with a broader meaning than emarginate leaf:

emarginate leaf: a leaf having a notch at the apex
foliage: the main organ of photosynthesis and transpiration in higher plants

Other hypernyms of emarginate leaf include leaf, leafage.

emarginate leaf (noun)	foliage (noun)
a leaf having a notch at the apex	(architecture) leaf-like architectural ornament
	the main organ of photosynthesis and transpiration in higher plants