Madder Roots, ground, with pieces

Ground root of the madder plant, or garance (Rubia tinctorium). Madder roots are the roots of the dyer s madder, also called dyer s root or dyer s red. Dyer s madder Rubia tinctorium (Rubiaceae family) is an outwardly similar herbaceous plant to the bedstraw (popularly known as "burdock"), about half a meter tall.