AKA: Turnera aphrodisiaca, Turnera diffusa.
Popular in Mexico, it is used to make both a tea and a liqueur.
Effects: It may have a calming or sleep-inducing effect. It is traditionally thought of as an aphrodisiac, and has been used to treat impotence and sterility, not to mention diabetes, kidney disease, bladder infections, asthma, bronchitis, chronic fatigue, and anxiety.
Precautions: It can interfere with the absorption of iron. Evidence for its supposed aphrodisiac qualities is only anecdotal, though it is generally considered a safe herb. There appear to be no reports of toxicity.
Dosage: James A Duke, Ph.D., recommends a tablespoon of dried herb in a cup of boiling water.
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