Medicinal Benefits of Rhubarb- Interesting part of this article below- The astringent roots from these plants have been used as a purgative for more than 5,000 years since they have such a strong laxative action; and they have also been used for treating burns, dysentery, appendicitis, toothache, various skin maladies and more. All rhubarbs, both culinary and medicinal, are members of the buckwheat family (Polygonaceae), and the name is believed to have originated from the Grecian Rha, their word for rhubarb. The medicinal rhubarbs of the past had deeply lobed leaves, while the more recent culinary rhubarbs have huge, heart-shaped leaves with less-defined lobes. From- Grit.com
Who knew! Lots of great recipes, etc., too in the article.