Nalca is an unusual perennial plant native to southern Chile, often referred to as Chilean rhubarb. It has long prickly stems and large green leaves which can grow to two meters in size. This ancient plant is a common ingredient in traditional Chilean cuisine.
The large leaves are not edible but used as a wrapper in the Chilean curanto, a traditional dish cooked in large underground pits. The prickly stalks are edible, and are usually just peeled, salted, and enjoyed as a refreshing snack. Similar to rhubarb, the stalks are crispy and have a slightly sour taste, which makes it a perfect ingredient for jams and preserves.