black root

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Dried rhizome and roots of Veronicastrum virginicum (family Serophulariaceae). Indigenous to North America. Formerly used as a cathartic.
Synonym(s): black root, Culver root

Culver’s root

Herbal medicine
A perennial herb, the root of which has leptandrin, resin, saponins, tannins and volatile oil; it is laxative, and has been used for chronic indigestion and liver disorders.

black root

(blak rūt)
Herbal made from Veronicastrum virginicum; foul-tasting, used as an emetic and cathartic; purported value in therapy for hepatic and biliary disorders. Hepatotoxicity reported.
Synonym(s): Culver's root, high veronica, physic root, tall speedwell, veronica.

black root,

n Latin names:
Veronicastrum virginicum, Leptandra virginica, Veronica virginica; parts used: fruit (unripened), oleoresin, roots, rhi-zome; uses: aromatic, antiperiodic, emetic, diuretic, appetite stimulant, astringent, jaundice, upset digestive system, common cold, seizures, bronchitis, epidermal disorders; precautions: pregnancy, lactation, children, causes headaches, drowsiness, vomiting, stomach cramps, hepatotoxicity (from dried leaves in large doses). Also called
Bowman root, brinton root, Culvert's physic, Culver's root, high veronica, hini, leptandra, physic root, quitel, tall speedwell, or