The dried flowering tops are infused in simmering water for about ten minutes, covered. This preparation was traditionally consumed in small quantities, preferably under the guidance of an experienced herbalist. Dosage must be validated with a healthcare professional or recognized pharmacopoeia before use.
The flowering parts are macerated in alcohol for several weeks then filtered. This concentrated form requires professional advice before any use, due to the richness in active resins. Dosage must be validated with a healthcare professional or recognized pharmacopoeia before use.
A cooled decoction of the aerial parts is applied as a compress to irritated skin. This traditional external use nevertheless requires verifying the absence of particular skin sensitivity. Dosage must be validated with a healthcare professional or recognized pharmacopoeia before use.
Grindelia camporum is found in the wild in the arid and sunny areas of California and the plains of the American West; in France, it is mainly found in specialized herbalist shops, in the form of dried plant or tincture.
The flowering tops are traditionally harvested in late summer, when the resinous flower heads are fully open and saturated with their sticky sap.