Herbarium of the Ancients — Detailed Record

Astragalus amphioxys

Please read before use: the information below describes traditional and informational uses — it does not replace the advice of a healthcare professional. In case of doubt, pregnancy, breastfeeding, ongoing treatment, or use in children, seek advice before use.

Enhanced precautions for this plant: The Astragalus genus includes numerous wild North American species that are toxic (selenium accumulators or containing neurotoxic compounds such as swainsonine); species misidentification is a real and serious risk. Astragalus amphioxys is not the commonly cultivated and documented astragalus in pharmacopoeias (Astragalus membranaceus): its traditional use remains poorly documented and should not be equated with that of the latter. Not recommended for pregnant or breastfeeding women, children, or individuals on medication, due to insufficient safety data. Any internal use must be preceded by consultation with a healthcare professional or qualified herbalist with precise knowledge of the harvested species.

Decoction — Root

Traditional root decoction

The dried root was cut into pieces and then gently boiled in water for about fifteen minutes, according to reported but poorly formalized local uses. This preparation requires rigorous botanical identification and professional advice before any consumption. Dosage must be validated with a healthcare professional or recognized pharmacopoeia before use.

Poultice — Root

Crushed root poultice

The fresh or rehydrated root was crushed and then applied locally to the skin as a compress, in a traditional external use reported in isolated cases. Professional advice remains recommended before any application, especially for sensitive skin. Dosage must be validated with a healthcare professional or recognized pharmacopoeia before use.

Where to find it

Sourcing the plant

This astragalus grows wild in the arid and rocky regions of the southwestern United States; it is neither cultivated nor commercially available in common herbalism, and is therefore found essentially in situ, in protected areas of the American West.

Harvest season

When to harvest it

The root was traditionally harvested in late summer or autumn, when the plant had accumulated its reserves after spring flowering.

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