"K of hearts", in fact, its real name is Roselle. This is a plant with medicinal value, the scientific name is "Roselle", also known as "Red Peach K". It belongs to Malvaceae. 1945 was introduced from Africa and India. Drinking after making tea or soaking in wine can play the role of diuresis, lowering blood pressure, nourishing blood and beautifying. People with hyperacidity cannot drink it for a long time, but this plant has not been used in clinical medicine in China.

Roselle is a new raw material for food and food industry. Its calyx can be used to make candied fruit, jam, high-grade drinks, cold drinks, soft drinks, iced tea, hot tea, ice pressed, sorbet, canned food, fruit wine, sparkling wine, champagne, pastry stuffing, roselle tofu and other foods.