Identifying a wildflower name

Hello Sandy: I live in South Jersey, and my great aunt( she is 97) tells about hunting for a native flower here called " arhustus" when she was a little girl. SHe said they also called them may flowers, as it was in May when they would find them in the woods. She can't remember anything else about them, tho. Have you ever heard of this flower before? THanks-- Brenda Allen