Gently boil a piece of dried root in water for about fifteen minutes, then allow to cool before use as a gargle or beverage. A healthcare professional or qualified herbalist should be consulted before any use, as the plant is poorly documented. Dosage must be validated with a healthcare professional or recognized pharmacopoeia before use.
Infuse a few fresh or dried leaves in hot water for a few minutes, allow to cool then filter carefully several times before any use as an eye bath. This preparation requires extreme cleanliness and prior advice from a healthcare professional. Dosage must be validated with a healthcare professional or recognized pharmacopoeia before use.
Lightly crush fresh leaves and apply directly to clean skin, as a compress, for traditional soothing and astringent use. Dosage must be validated with a healthcare professional or recognized pharmacopoeia before use.
It is rarely found in commercial herbalist shops; it grows wild in mountain meadows and clearings of the American West, and is sometimes cultivated in North American native plant gardens.
Leaves are harvested in spring and early summer, while the root is traditionally dug up in autumn, once the plant has finished flowering.