leaf form vs leaf shape

leaf form and leaf shape both are nouns.

Word	Noun	Adjective	Verb	Adverb
leaf form	Yes	No	No	No
leaf shape	Yes	No	No	No

As nouns, leaf form and leaf shape are synonyms defined as:

leaf form and leaf shape: any of the various shape that leaves of plants can assume

leaf form (noun)	leaf shape (noun)
any of the various shape that leaves of plants can assume	any of the various shape that leaves of plants can assume