Here's how it functions:
* Verb: "To strew" means to scatter or spread things randomly.
* Past Participle: "Strewn" is used to form perfect tenses (e.g., "The floor was strewn with papers.") and in passive voice constructions (e.g., "The seeds were strewn across the field.").
Therefore, while "strewn" can act as an adjective describing a state of being scattered, it's fundamentally a verb form.