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Medicine. Many flowers are crushed and used for medicinal purposes. The hibiscus sabdariffa, also called roselle, is one example of a flower that serves as an effective laxative and has been used for centuries by herbalists and folk medicine practitioners.any flowers are crushed and used for medicinal purposes. The hibiscus sabdariffa, also called roselle, is one example of a flower that serves as an effective laxative and has been used for centuries by herbalists and folk medicine practitioners.
Related Content. Hibiscus (Hibiscus sabdariffa), also called roselle, is a short-day plant usually grown in tropical and subtropical areas. In the United States, it has been grown commercially in Florida, California, Louisiana and Kentucky.elated Content. Hibiscus (Hibiscus sabdariffa), also called roselle, is a short-day plant usually grown in tropical and subtropical areas. In the United States, it has been grown commercially in Florida, California, Louisiana and Kentucky.