What kind of noun is leaves?

"Leaves" can be either a plural noun or a collective noun, depending on the context.

* Plural Noun: When referring to multiple individual leaves, it's a plural noun.

* Example: "The leaves on the maple tree are turning red."

* Collective Noun: When referring to leaves as a group, it's a collective noun.

* Example: "A thick leaves covered the forest floor."

The context usually makes it clear which meaning is intended.