Nasturtium root, also known as Tropaeolum majus, is the underground part of the Nasturtium plant. This root is typically slender and tuberous, with a slightly peppery taste similar to the plant's leaves and flowers. Nasturtium roots are commonly used in culinary applications, where they can be pickled, grated, or cooked to add a unique flavor to dishes. In addition to its culinary uses, Nasturtium root is also believed to have medicinal properties and has been used in traditional herbal medicine for its potential health benefits.