Marshmallow Root Source & Identity
The species is Althaea officinalis L. of the mallow family, a tall perennial of damp meadows and salt marshes with velvety, gray-green leaves. The part used is the root, usually peeled and dried. Leaves and flowers are not used. Hollyhock (Alcea rosea) and common mallow (Malva sylvestris) are relatives that also yield mucilage, but they are different plants and are not substituted. Marshmallow root is known for very high mucilage, built on arabinogalactan and rhamnogalacturonan polysaccharides, along with starch, pectin and small amounts of flavonoids and phenolic acids. A water extract draws out the mucilage, which dissolves and thickens water.












