The yellow mustard belongs to the Brassicaceae family and is scientifically called Sinapis alba. The seed is usually small, round and stony with a spiceless flavour. Mustard seeds are referred to as â??sarsonâ?? in India. The first spice used by the Romans were the mustard seed. The cultivation of this seed has spread substantially and is grown in various countries like UK, USA, Canada and also India. It is also known to alleviate joint pains, back aches and also relieves stiff and sore muscles.