Aristeguietia gayana, or asmachilca, is a bush that grows up to 1 meter in height. It grows in the west-facing mountainsides and interandean valleys between 3600–4000 meters in altitude.

Asmachilca is only found in Peru. It was traditionally used by the Incas for respiratory system complaints.[citation needed] Today, it is used in cooking, but tea is the most common preparation.

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