The seeds can come from three different plants: black mustard , brown Indianmustard and white or yellow mustard.
芥菜籽来源于三种不同的植物：黑芥末，褐色印度芥末和白色或者黄色芥末。
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The Indianmustard plant (Brassicaceae5) is believed to act as a magnet for essential minerals and metals in the soil, which we don't get enough of in our food today.
Three predominant forms of Cdin Cd accumulator oilseed rapes, non-tolerant oilseed rape and Indianmustard were NaCl-extractable, acetic acid-extractable and water-extractable Cd.