Uncaria tomentosa, commonly known as cat's claw, is a woody vine native to the Amazon rainforest and other tropical areas of South America. It gets its name from the hook-like thorns on its stems, which resemble a cat's claw. Traditionally, it has been used in herbal medicine for its potential anti-inflammatory and immune-boosting properties. The plant contains various compounds, including alkaloids and flavonoids, which are believed to contribute to its health benefits. Uncaria tomentosa is often available in supplements, teas, and tinctures, and is studied for its effects on conditions like arthritis and digestive issues.