Pepper corn or Black pepper (Piper nigrum) is a flowering vine in the family Piperaceae. Piper nigrum is native to India and is extensively cultivated in tropical regions. Cultivated for its fruit, green , white or black (when dried) it is used as a spice and seasoning. Green pepper in the unripe fruit. White pepper is the seed of the pepper with the skin of the pepper fruit removed. Black pepper is the ripe fruit boiled and then dried. Black pepper is the world's most traded spice.