Sugar cane is a tropical and subtropical grass. Its long stems grow tall with blade-like leaves and clusters of white flowers. The cane is squeezed for juice that is high in sucrose. It is processed on-site into unrefined sugar, and in certain areas, the juice is boiled down to make a molasses-like brown sugar called jaggery.
Sugar cane was the first cultivated crop for sugar production and most of today's refined sugar is produced from it. Many other types of sugar exist - for example, fructose (fruit sugar) and lactose (milk sugar), but we usually commonly assume the word sugar to refer to sucrose.
White icing sugar is a finely powdered form of sugar, commonly mixed with water and used to decorate cakes and pastries. It has a silky texture and dissolves in water quickly.