Oilseeds of lesser significance include castor beans, rapeseed, peanuts, and safflower and sunflower seeds. Most vegetable oils are rich in linoleic acid (safflower, sunflower, and corn oils). Commonly used drying oils include linseed oil, poppy seed oil, walnut oil, and safflower oil. The major oilseed crops are sunflower, groundnut and safflower. Safflower seed oil is flavorless and colorless, and nutritionally similar to sunflower oil. Related drying oils include linseed, safflower, poppy, and soybean oils. Backyard birders attract it using feeders containing seeds, particularly sunflower seeds and safflower seeds. In recent decades, sunflower, safflower, cottonseed, and soybean oils have become popular across India. Principal oilseeds were sesame or til ("Sesamum indicum"), mustard, castor bean, safflower and linseed. Fields here yield wheat, soybeans, safflower, corn, cotton with some fruit trees. The mixer typically has oils within it (such as safflower oil). The dried safflower petals are also used as a herbal tea variety. Safflower is a common substitute sometimes sold as saffron. In the 1980s, Cargill sold hybrid safflower seeds extensively in Pakistan. Other plants such as pea, safflower, and spinach may also become infected.