noun Any of various perennial herbs of genus (Spigelia), sometimes cultivated for their vibrant red blossoms, especially: A West Indian pinkroot, an annual South American and West Indian plant (Spigelia anthelmia). A woodland pinkroot (Spigelia marilandica)
noun A West Indian pinkroot, an annual South American and West Indian plant (Spigelia anthelmia).
noun A woodland pinkroot (Spigelia marilandica)
noun The root of these plants, used as a powerful anthelmintic.