Synopsis

Source of validity: Traditional
Rating (out of 5): 2

Rhus glabra (smooth sumac) has a history of traditional use among various Native American groups for the treatment of skin lesions, ulcers, and sores. Ethnobotanical records indicate that poultices made from the leaves, bark, or roots were applied topically to aid in the healing of wounds and skin eruptions, likely due to the plant’s astringent properties. These uses are documented in several ethnobotanical surveys and historical texts, such as those compiled by Daniel E. Moerman and others. The traditional rationale centers on the plant’s tannin-rich content, believed to help contract and protect damaged tissue.

However, scientific validation for the efficacy of Rhus glabra specifically for lesions is limited. Some laboratory studies have noted that extracts of Rhus glabra exhibit antimicrobial and astringent properties, which could theoretically benefit wound healing. Still, direct clinical trials or robust scientific studies supporting its use for skin lesions in humans are lacking. Therefore, while there is a clear tradition of use, the current evidence is largely anecdotal and based on ethnobotanical tradition rather than modern clinical research.

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