Celeriac (Apium graveolens var. rapaceum), also called celery root, knob celery, and turnip-rooted celery (although it is not a close relative of the turnip), is a variety of celery cultivated for its edible stem or hypocotyl, and shoots. Celeriac is like a root vegetable except it has a bulbous hypocotyl with many small roots attached. Typically, celeriac is harvested when its hypocotyl is 10 to 14 centimetres (4 to 5+1⁄2 inches) in diameter. However, a growing trend (specifically in South American cuisine, particularly Peruvian) is to use the immature vegetable, valued for its intensity of flavour and tenderness overall. It is edible raw or cooked, and tastes similar to the leaf stalks of common celery cultivars. Celeriac may be roasted, stewed, or blanched, and may be mashed. Sliced celeriac is used as an ingredient in soups, casseroles, and other savory dishes. The leaves (both the stalks and the blades) of the vegetable are quite flavoursome, and aesthetically delicate and vibrant, which has led to their use as a garnish in contemporary fine dining.[citation needed] (Source: Wikipedia.org, CC BY-SA)