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(Natural News) Stachytarpheta urticifolia, also known as nettleleaf velvetberry or rattail, is a semi-woody, perennial herb that belongs to the verbena (Verbenaceae) family. It is distributed mainly in certain regions of Asia and Africa. Known for its attractive blue flowers, the nettleleaf velvetberry has been grown in gardens for over 200 years. According to studies, nettleleaf velvetberry… |