Marshmallow
an herb related to the hollyhock and hibiscus. It has rose-colored flowers, not unlike the mallow of dooryards. It is cultivated chiefly in Europe. The root is an article of commerce. It is used in the manufacture of mucilage. It possesses medicinal qualities also, and has a well known flavor. Like peppermint, it is used in the manufacture of confectionery, giving its name to the candies known as marshmallows. The plant grows wild in places along the eastern coast of the United States.
Volume III · Aiton’s Encyclopedia