Mustard oil is derived from the seeds of mustard plants, specifically Brassica nigra (black mustard) and Brassica juncea (brown mustard). It is a popular cooking oil in many parts of India and ...

Known scientifically as brassica nigra, black mustard is related to grocery store mainstays like Brussels sprouts and cauliflowers. As such, the plant is edible and as its namesake suggests ...