Sea milkwort is a beautiful flowering plant that thrives in coastal and salt marshes. It's also commonly referred to as saltmarsh pennywort, marsh pennywort, and marsh trefoil. These names refer to the plant's ability to grow in environments near the sea or in wetlands. Additionally, the sea milkwort is also known by other names like creeping marshwort, water pennywort, and navelwort. These names reflect the plant's creeping growth habit and the shape of its foliage. Overall, the different synonyms for sea milkwort highlight various aspects of its appearance and preferred environment. Regardless of which name is used, this plant remains a stunning addition to any coastal garden.