Carolina Buckthorn, Frangula caroliniana, syn. Rhamnus caroliniana.

Carolina Buckthorn, Frangula caroliniana, syn. Rhamnus caroliniana. Botanists routinely separate the 125 species of Rhamnus (5-petals, and perfect flowers) from Frangula (4-petals, with male and female flower separate). Traditionally aged bark tea to induce vomiting; also a strong laxative. The Delaware used the inner bark for this purpose. Still used for constipation with nervous or muscular atony of intestines.

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