Polygala alba, commonly known as white milkwort, is a herbaceous perennial plant native to North America. It is a member of the Polygalaceae family, which is characterized by its often showy, pea-like flowers. White milkwort is a relatively small plant, typically reaching heights of 15 to 45 centimeters (6 to 18 inches). Its growth habit is generally erect to spreading, forming a somewhat loose clump. The stems are slender and often branched, supporting the plant's foliage and inflorescences. The leaves of Polygala alba are simple, alternate, and sessile or subsessile, meaning they have very short or no leaf stalks. They are typically lanceolate to ovate in shape, measuring about 1 to 3 centimeters (0.4 to 1.2 inches) in length. The leaf margins are entire, and the surface is usually smooth. The color of the leaves is a medium to dark green. The flowers are the most striking feature of white milkwort. They are borne in terminal or axillary racemes, which are elongated clusters of flowers. Each individual flower is zygomorphic, meaning it has bilateral symmetry, and is composed of several specialized structures. The most prominent parts are the two large, petal-like sepals, which are typically white and resemble wings. These are often referred to as "wings" and are a characteristic feature of the genus Polygala. The true petals are smaller and are fused to form a keel-like structure, which often bears a fringed appendage. The flowering period generally occurs from late spring through summer, with blooming often extending into autumn. Following successful pollination, Polygala alba produces a small, flattened capsule that contains seeds. The capsule typically splits open to release the seeds, which are small and often have a caruncle, a fleshy appendage that can aid in dispersal by ants. Polygala alba is found in a variety of open, sunny habitats across its native range, which includes parts of the central and southeastern United States. It thrives in well-drained soils, often preferring sandy or loamy substrates. Common habitats include prairies, savannas, open woodlands, and disturbed areas such as roadsides and fields. It is adapted to a range of soil pH but generally prefers neutral to slightly acidic conditions. While it can tolerate some drought once established, consistent moisture is beneficial for optimal growth. This species has ecological significance as a food source for certain insects and as a component of native plant communities. Its ornamental value lies in its delicate white flowers and attractive foliage, making it a suitable choice for native plant gardens, wildflower meadows, and naturalistic landscapes. It is relatively low-maintenance when grown in appropriate conditions, requiring minimal pruning and fertilization. While not widely cultivated for agricultural or medicinal purposes, its presence contributes to biodiversity and ecosystem health in its native regions.