The sweet thorn (Acacia karroo) can punish absentminded travellers with its very long and rather sharp thorns. It does however have a sweeter side; its gum. The gum is sweet, edible and water soluble. It is used in syrups for soft drink, candy, icing sugar, chewing gum and as a lick-able adhesive e.g. on postage … Continue reading Painful but sweet