Piper nigrum, Kali Mirch is a perennial woody spreading vine. It starts rooting readily where trailing stems touch the ground. The leaves are 5 to 10 cm long and 3 to 6 cm broad. The flowers are small and spherical fruits that ripen red. Indoor houseplants will not usually produce fruit. The plants may bear fruit from the fourth or fifth year, and then typically for seven years.Black pepper is a flowering vine, cultivated for its fruit, which is usually dried and used as a spice and seasoning. When dried, the fruit is known as a peppercorn.