Black Root plant - Leptandra Virginica syn. Veronicastrum Virginicum (Scrophulariaceae)

Medicinal Use of Black Root – Leptandra Virginica syn. Veronicastrum Virginicum (Scrophulariaceae)


Perennial herb growing to 3 ft (1 m). Has an erect stem, lance-shaped leaves, and white flowers.

Habitat & Cultivation

Black root grows across North America in meadows and woodlands. The root is unearthed in autumn.

Part Used

Dried root.


Black root contains a volatile oil, saponins, sugars, and tannins.

History & Folklore

Known to the Native Americans of Missouri and Delaware as a violent purgative, black root was used in moderate doses as a laxative, a detoxifier, and a remedy for liver disorders. In the 19th century Physiomedicalist tradition, black root was taken to stimulate bile production.

Medicinal Actions & Uses

Black root is used in small doses today as a laxative and a remedy for liver and gallbladder disorders. The herb also treats flatulence and bloating, and eases the discomfort of hemorrhoids, chronic constipation, and rectal prolapse.


Do not use the fresh root. Do not take during pregnancy.