It is naturally present in Hydrastis canadensis (thus the name) and other plants of the ranunculaceae family.

Hydrastis canadensis.

Yellow puccoon - Hydrastis canadensis (also called Goldenseal)

Though ox-eye daisy is sometimes known as goldenseal, it is unrelated to the plant more commonly called goldenseal (Hydrastis canadensis).

He studied medicine in Bordeaux and Paris, defending his doctorate in 1889 with a thesis involving Hydrastis canadensis.

Ellingwood cites one unusual use: Cuthberton gave hydrastis canadensis as a tonic to a pregnant woman who had a goitre of recent appearance.

Hydrastis canadensis : fascimile, reprint and illustrations of the article in "Drugs and medicines of North America".

Some Ranunculaceae are used as herbal medicines because of their alkaloids and glycosides, such as Hydrastis canadensis (goldenseal), whose root is used as a tonic.

Effect of goldenseal (Hydrastis canadensis) and kava kava (Piper methysticum) supplementation on digoxin pharmacokinetics in humans.

Increased production of antigen-specific immunoglobulins G and M following in vivo treatment with the medicinal plants Echinacea angustifolia and Hydrastis canadensis.

Artisans taught her to forage for yellow root (Hydrastis canadensis), black root (Veronicastrum virginicum) and walnut hulls, all used to dye grasses and other materials for making baskets.

Instead, try herbal medications with anti-strep activity, such as golden seal (HYDRASTIS CANADENSIS).

Goldenseal (Hydrastis canadensis), also called orangeroot or yellow puccoon, is a perennial herb in the buttercup family Ranunculaceae, native to southeastern Canada and the northeastern United States.

Hydrastinine is a semisynthetic alkaloid from the hydrolysis of the alkaloid hydrastine, which was found naturally in small quantities in Hydrastis canadensis L. (Ranunculaceae).

Scazzocchio F, Corneta MF, Tomassini L, Palmery M. Antibacterial activity of Hydrastis canadensis extract and its major isolated alkaloids.

He reported success with Yellow-root (i.e. Hydrastis canadensis ) as it had 'flowered and ripened seeds in our garden, two years past, from some roots which were sent me from the inland parts of your country.

Another good gargle, especially if you are prone to tonsillitis, is a tea of equal parts golden seal root (HYDRASTIS CANADENSIS) and sage.