Hypericum fasciculatum, commonly known as peelbark St. John's Wort, is a perennial shrub native to the southeastern United States. This species is recognized for its distinctive bark and its role within its natural ecosystems. It belongs to the Hypericum genus, which is known for its diverse species, many of which feature characteristic yellow flowers. The growth habit of Hypericum fasciculatum is upright and somewhat spreading, typically reaching heights of 1 to 2 meters (3 to 6 feet). Its most striking feature is its bark, which is thin, papery, and exfoliates in strips, revealing lighter layers underneath, hence the common name "peelbark." The stems are often woody and can be somewhat angular. The leaves are arranged oppositely along the stems and are simple, lanceolate to ovate in shape, and typically measure 2 to 5 cm (0.8 to 2 inches) in length. They are usually sessile or have very short petioles and possess numerous small, translucent dots, a common characteristic of many St. John's Wort species, which are visible when held up to the light. Flowering occurs from late spring through summer, producing clusters of bright yellow, star-shaped flowers. Each flower typically has five petals and numerous stamens, which are a prominent feature and contribute to the flower's showy appearance. The fruit that develops after flowering is a capsule, which matures into a dry, dehiscent structure containing numerous small seeds. Hypericum fasciculatum is primarily found in its native range, which includes parts of Florida, Georgia, and Alabama. It thrives in sandy, well-drained soils and is often found in open woodlands, pine savannas, and along the edges of swamps or wet prairies. It prefers full sun to partial shade. While it is adapted to its native conditions, it can be cultivated in similar environments, requiring good drainage and moderate moisture. Ecologically, peelbark St. John's Wort serves as a nectar source for pollinators, including bees and butterflies. Its seeds and foliage may also provide food or habitat for certain wildlife. Historically, some species within the Hypericum genus have been recognized for medicinal properties, though specific, well-established uses for Hypericum fasciculatum are not widely documented in scientific literature. Its ornamental value lies in its attractive yellow flowers and particularly its unique exfoliating bark, making it an interesting specimen plant for gardens that can replicate its preferred habitat. The plant's adaptations, such as its ability to grow in sandy soils, highlight its resilience in specific ecological niches within the southeastern United States.