Coriander is an important spice crop that holds a prime position in the flavouring of food. The entire plant has a pleasant aroma and the seed have a delicate, lemony citrus flavour when crushed. The seeds are generally pale white to light brown in colour, and are described as warm, nutty, spicy and orange flavoured. Coriander is commonly found both as whole dried seeds and in ground form. Coriander seeds act as a thickener, and its ground form is a common ingredient in curries. Roasted coriander seeds can be eaten as a snack, while boiled seeds are consumed as a traditional medicine for colds. Outside of Asia, coriander seeds are used for pickling vegetables, and are an occasional ingredient in rye bread.