leafage vs foliage

leafage and foliage both are nouns.

Word	Noun	Adjective	Verb	Adverb
leafage	Yes	No	No	No
foliage	Yes	No	No	No

As nouns, leafage and foliage are synonyms defined as:

leafage and foliage: the main organ of photosynthesis and transpiration in higher plants

Other synonyms of leafage include leaf.

leafage (noun)	foliage (noun)
the main organ of photosynthesis and transpiration in higher plants	(architecture) leaf-like architectural ornament
	the main organ of photosynthesis and transpiration in higher plants