compound leaf vs foliage

compound leaf and foliage both are nouns.

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

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

compound leaf: a leaf composed of a number of leaflets on a common stalk
foliage: the main organ of photosynthesis and transpiration in higher plants

Other hypernyms of compound leaf include leaf, leafage.

compound leaf (noun)	foliage (noun)
a leaf composed of a number of leaflets on a common stalk	(architecture) leaf-like architectural ornament
	the main organ of photosynthesis and transpiration in higher plants