Sea pea, also known as beach pea or bay bean, is a type of plant found in coastal areas. It can be difficult to find synonyms for this specific plant as it is not commonly referred to by any other names. However, some synonyms that may be used in a more general sense include coastal plant, seashore vegetation, and salt marsh flora. These synonyms help to describe the plants that are found in similar environments to the sea pea and can be used to create a more diverse vocabulary when discussing coastal plant life.