Hay-scented is a term used to describe a grass-like aroma that usually emanates from hay. However, there are various other synonyms that can be used to describe the same scent. Some of these include clover, alfalfa, straw, and grass. Clover is a plant that has a sweet nectar-like scent, while alfalfa has a more earthy aroma. Straw, on the other hand, typically has an old and musty smell, while grass produces a fresh and green scent. Each of these scents can be used interchangeably with hay-scented. Whether you are describing a field or a barn, there are many synonyms to help you capture the essence of the surrounding scent.